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326 lines
11 KiB
326 lines
11 KiB
// Title: Tigra Menu |
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// Description: Free JavaScript Menu Navigation |
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// URL: http://www.javascript-menu.com/ |
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// Version: 2.1 (commented source) |
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// Date: 06/26/2007 |
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// Tech. Support: http://www.softcomplex.com/forum/forumdisplay_29/ |
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// Notes: This script is free. Visit official site for further details. |
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// -------------------------------------------------------------------------------- |
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// global collection containing all menus on current page |
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var A_MENUS = []; |
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// -------------------------------------------------------------------------------- |
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// menu class |
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function menu(a_items, a_tpl) { |
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// browser check |
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if (!document.body || !document.body.style) |
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return; |
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// store items structure |
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this.a_config = a_items; |
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// store template structure |
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this.a_tpl = a_tpl; |
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// get menu id |
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this.n_id = A_MENUS.length; |
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// declare collections |
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this.a_index = []; |
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this.a_children = []; |
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// assigh methods and event handlers |
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this.expand = menu_expand; |
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this.collapse = menu_collapse; |
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this.onclick = menu_onclick; |
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this.onmouseout = menu_onmouseout; |
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this.onmouseover = menu_onmouseover; |
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this.onmousedown = menu_onmousedown; |
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// default level scope description structure |
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this.a_tpl_def = { |
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'block_top': 16, |
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'block_left': 16, |
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'top': 20, |
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'left': 4, |
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'width': 120, |
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'height': 22, |
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'hide_delay': 0, |
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'expd_delay': 0, |
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'css': { |
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'inner': '', |
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'outer': '' |
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} |
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}; |
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// assign methods and properties required to imulate parent item |
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this.getprop = function (s_key) { |
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return this.a_tpl_def[s_key]; |
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}; |
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this.o_root = this; |
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this.n_depth = -1; |
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this.n_x = 0; |
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this.n_y = 0; |
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// init items recursively |
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for (n_order = 0; n_order < a_items.length; n_order++) |
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new menu_item(this, n_order); |
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// register self in global collection |
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A_MENUS[this.n_id] = this; |
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// make root level visible |
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for (var n_order = 0; n_order < this.a_children.length; n_order++) |
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this.a_children[n_order].e_oelement.style.visibility = 'visible'; |
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} |
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// -------------------------------------------------------------------------------- |
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function menu_collapse(n_id) { |
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// cancel item open delay |
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clearTimeout(this.o_showtimer); |
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// by default collapse to root level |
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var n_tolevel = (n_id ? this.a_index[n_id].n_depth : 0); |
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// hide all items over the level specified |
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for (n_id = 0; n_id < this.a_index.length; n_id++) { |
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var o_curritem = this.a_index[n_id]; |
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if (o_curritem.n_depth > n_tolevel && o_curritem.b_visible) { |
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o_curritem.e_oelement.style.visibility = 'hidden'; |
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o_curritem.b_visible = false; |
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} |
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} |
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// reset current item if mouse has gone out of items |
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if (!n_id) |
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this.o_current = null; |
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} |
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// -------------------------------------------------------------------------------- |
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function menu_expand(n_id) { |
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// expand only when mouse is over some menu item |
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if (this.o_hidetimer) |
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return; |
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// lookup current item |
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var o_item = this.a_index[n_id]; |
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// close previously opened items |
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if (this.o_current && this.o_current.n_depth >= o_item.n_depth) |
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this.collapse(o_item.n_id); |
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this.o_current = o_item; |
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// exit if there are no children to open |
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if (!o_item.a_children) |
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return; |
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// show direct child items |
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for (var n_order = 0; n_order < o_item.a_children.length; n_order++) { |
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var o_curritem = o_item.a_children[n_order]; |
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o_curritem.e_oelement.style.visibility = 'visible'; |
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o_curritem.b_visible = true; |
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} |
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} |
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// -------------------------------------------------------------------------------- |
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function menu_onclick(n_id) { |
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var o_item = this.a_index[n_id]; |
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var s_link = o_item.a_config[1]; |
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if (!s_link) |
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return true; |
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if (String(s_link).toLowerCase().indexOf('javascript:') == 0) |
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return eval(s_link); |
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if (o_item.a_config[2] && o_item.a_config[2]['tw']) |
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window.open(s_link, o_item.a_config[2]['tw']); |
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else |
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window.location = s_link; |
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return true; |
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} |
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// -------------------------------------------------------------------------------- |
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function menu_onmouseout(n_id) { |
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// lookup new item's object |
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var o_item = this.a_index[n_id]; |
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// apply rollout |
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o_item.e_oelement.className = o_item.getstyle(0, 0); |
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o_item.e_ielement.className = o_item.getstyle(1, 0); |
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// update status line |
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o_item.upstatus(7); |
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// run mouseover timer |
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this.o_hidetimer = setTimeout('A_MENUS[' + this.n_id + '].collapse();', |
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o_item.getprop('hide_delay')); |
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} |
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// -------------------------------------------------------------------------------- |
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function menu_onmouseover(n_id) { |
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// cancel mouseoute menu close and item open delay |
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clearTimeout(this.o_hidetimer); |
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this.o_hidetimer = null; |
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clearTimeout(this.o_showtimer); |
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// lookup new item's object |
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var o_item = this.a_index[n_id]; |
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// update status line |
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o_item.upstatus(); |
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// apply rollover |
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o_item.e_oelement.className = o_item.getstyle(0, 1); |
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o_item.e_ielement.className = o_item.getstyle(1, 1); |
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// if onclick open is set then no more actions required |
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if (o_item.getprop('expd_delay') < 0) |
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return; |
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// run expand timer |
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this.o_showtimer = setTimeout('A_MENUS[' + this.n_id + '].expand(' + n_id + ');', |
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o_item.getprop('expd_delay')); |
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} |
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// -------------------------------------------------------------------------------- |
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// called when mouse button is pressed on menu item |
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// -------------------------------------------------------------------------------- |
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function menu_onmousedown(n_id) { |
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// lookup new item's object |
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var o_item = this.a_index[n_id]; |
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// apply mouse down style |
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o_item.e_oelement.className = o_item.getstyle(0, 2); |
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o_item.e_ielement.className = o_item.getstyle(1, 2); |
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this.expand(n_id); |
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} |
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// -------------------------------------------------------------------------------- |
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// menu item Class |
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function menu_item(o_parent, n_order) { |
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// store parameters passed to the constructor |
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this.n_depth = o_parent.n_depth + 1; |
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this.a_config = o_parent.a_config[n_order + (this.n_depth ? 3 : 0)]; |
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// return if required parameters are missing |
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if (!this.a_config) |
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return; |
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// store info from parent item |
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this.o_root = o_parent.o_root; |
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this.o_parent = o_parent; |
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this.n_order = n_order; |
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// register in global and parent's collections |
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this.n_id = this.o_root.a_index.length; |
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this.o_root.a_index[this.n_id] = this; |
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o_parent.a_children[n_order] = this; |
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// calculate item's coordinates |
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var o_root = this.o_root, |
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a_tpl = this.o_root.a_tpl; |
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// assign methods |
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this.getprop = mitem_getprop; |
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this.getstyle = mitem_getstyle; |
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this.upstatus = mitem_upstatus; |
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this.n_x = n_order |
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? o_parent.a_children[n_order - 1].n_x + this.getprop('left') |
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: o_parent.n_x + this.getprop('block_left'); |
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this.n_y = n_order |
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? o_parent.a_children[n_order - 1].n_y + this.getprop('top') |
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: o_parent.n_y + this.getprop('block_top'); |
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// generate item's HMTL |
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document.write( |
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'<div id="e', o_root.n_id, '_', this.n_id, 'o" class="', this.getstyle(0, 0), '"', |
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(this.a_config[2] && this.a_config[2]['tt'] ? ' title="' + this.a_config[2]['tt'] + '"' : ''), |
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' style="position:absolute;top: ', this.n_y, 'px;left:', this.n_x, 'px;width:', |
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this.getprop('width'), 'px;height:', this.getprop('height'), 'px;visibility:hidden;', |
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' z-index: ', this.n_depth, ';cursor:', (this.a_config[1] ? 'pointer' : 'default'), '" ', |
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'onclick="return A_MENUS[', o_root.n_id, '].onclick(', this.n_id, |
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');" onmouseout="A_MENUS[', o_root.n_id, '].onmouseout(', this.n_id, |
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');" onmouseover="A_MENUS[', o_root.n_id, '].onmouseover(', |
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this.n_id, ');" onmousedown="A_MENUS[', o_root.n_id, '].onmousedown(', |
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this.n_id, ');"><div id="e', o_root.n_id, '_', |
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this.n_id, 'i" class="', this.getstyle(1, 0), '">', |
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this.a_config[0], "</div></div>" |
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); |
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this.e_ielement = document.getElementById('e' + o_root.n_id + '_' + this.n_id + 'i'); |
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this.e_oelement = document.getElementById('e' + o_root.n_id + '_' + this.n_id + 'o'); |
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this.b_visible = !this.n_depth; |
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// no more initialization if leaf |
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if (this.a_config.length < 4) |
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return; |
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// node specific methods and properties |
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this.a_children = []; |
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// init downline recursively |
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for (var n_order = 0; n_order < this.a_config.length - 3; n_order++) |
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new menu_item(this, n_order); |
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} |
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// -------------------------------------------------------------------------------- |
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// reads property from template file, inherits from parent level if not found |
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// ------------------------------------------------------------------------------------------ |
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function mitem_getprop(s_key) { |
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// check if value is defined for current level |
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var s_value = null, |
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a_level = this.o_root.a_tpl[this.n_depth]; |
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// return value if explicitly defined |
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if (a_level) |
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s_value = a_level[s_key]; |
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// request recursively from parent levels if not defined |
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return (s_value == null ? this.o_parent.getprop(s_key) : s_value); |
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} |
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// -------------------------------------------------------------------------------- |
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// reads property from template file, inherits from parent level if not found |
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// ------------------------------------------------------------------------------------------ |
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function mitem_getstyle(n_pos, n_state) { |
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var a_css = this.getprop('css'); |
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var a_oclass = a_css[n_pos ? 'inner' : 'outer']; |
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// same class for all states |
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if (typeof (a_oclass) == 'string') |
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return a_oclass; |
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// inherit class from previous state if not explicitly defined |
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for (var n_currst = n_state; n_currst >= 0; n_currst--) |
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if (a_oclass[n_currst]) |
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return a_oclass[n_currst]; |
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} |
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// ------------------------------------------------------------------------------------------ |
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// updates status bar message of the browser |
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// ------------------------------------------------------------------------------------------ |
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function mitem_upstatus(b_clear) { |
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window.setTimeout("window.status=unescape('" + (b_clear |
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? '' |
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: (this.a_config[2] && this.a_config[2]['sb'] |
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? escape(this.a_config[2]['sb']) |
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: escape(this.a_config[0]) + (this.a_config[1] |
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? ' (' + escape(this.a_config[1]) + ')' |
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: ''))) + "')", 10); |
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} |
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// -------------------------------------------------------------------------------- |
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// that's all folks
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