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207
public/js/treemenu.js
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207
public/js/treemenu.js
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//*************************************************************************************************
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//*
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//* JS TreeMenu 1.0 (c)2001 Scriptorium - BD
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//*
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//* http://scriptor.cjb.net
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//*
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//*************************************************************************************************
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//*************************************************************************************************
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//*
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//* Javascript Cookie functions from http://www.webreference.com/js/column8/
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//*
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//*************************************************************************************************
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// name - name of the cookie
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// value - value of the cookie
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// [expires] - expiration date of the cookie (defaults to end of current session)
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// [path] - path for which the cookie is valid (defaults to path of calling document)
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// [domain] - domain for which the cookie is valid (defaults to domain of calling document)
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// [secure] - Boolean value indicating if the cookie transmission requires a secure transmission
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// * an argument defaults when it is assigned null as a placeholder
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// * a null placeholder is not required for trailing omitted arguments
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function setCookie(name, value, expires, path, domain, secure) {
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expireDate = new Date
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expireDate.setMonth(expireDate.getMonth()+6)
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var curCookie = name + "=" + escape(value) +
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((expires) ? "; expires=" + expireDate.toGMTString() : "") +
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((path) ? "; path=" + path : "") +
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((domain) ? "; domain=" + domain : "") +
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((secure) ? "; secure" : "");
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document.cookie = curCookie;
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}
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// name - name of the desired cookie
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// * return string containing value of specified cookie or null if cookie does not exist
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function getCookie(name) {
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var dc = document.cookie;
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var prefix = name + "=";
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var begin = dc.indexOf("; " + prefix);
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if (begin == -1) {
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begin = dc.indexOf(prefix);
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if (begin != 0) return null;
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} else
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begin += 2;
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var end = document.cookie.indexOf(";", begin);
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if (end == -1)
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end = dc.length;
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return unescape(dc.substring(begin + prefix.length, end));
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}
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// name - name of the cookie
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// [path] - path of the cookie (must be same as path used to create cookie)
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// [domain] - domain of the cookie (must be same as domain used to create cookie)
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// * path and domain default if assigned null or omitted if no explicit argument proceeds
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function deleteCookie(name, path, domain) {
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if (getCookie(name)) {
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document.cookie = name + "=" +
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((path) ? "; path=" + path : "") +
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((domain) ? "; domain=" + domain : "") +
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"; expires=Thu, 01-Jan-70 00:00:01 GMT";
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}
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}
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// date - any instance of the Date object
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// * hand all instances of the Date object to this function for "repairs"
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function fixDate(date) {
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var base = new Date(0);
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var skew = base.getTime();
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if (skew > 0)
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date.setTime(date.getTime() - skew);
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}
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//*************************************************************************************************
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//*
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//* JS TreeMenu code (c)2001 Scriptorium - BD
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//*
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//* http://scriptor.cjb.net
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//*
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//*************************************************************************************************
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var menu_state = new Array();
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function treeNode(expand, caption, link, target, number, level) {
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// Node properties
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this.expand = expand;
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this.caption = caption;
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this.link = link;
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this.target = target;
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this.number = number;
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this.level = level;
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this.next = null;
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this.subtree = null;
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// Node methods
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this.AddChild = treeAddChild;
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this.AddSibling = treeAddSibling;
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this.Display = treeDisplay;
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}
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var buildProgress = 0;
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function addToTree(arr) {
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var start = buildProgress;
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var m = new treeNode(menu_state[start]=='1',arr[start][1],arr[start][2],arr[start][3], start, arr[start][0]);
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buildProgress++;
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var done = (buildProgress >= arr.length);
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var s = m;
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while (!done) {
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if (arr[start][0] == arr[buildProgress][0]) {
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j = buildProgress;
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s = s.AddSibling(menu_state[j]=='1',arr[j][1],arr[j][2],arr[j][3], j, arr[j][0]);
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buildProgress++;
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} else
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if (arr[start][0] < arr[buildProgress][0]) {
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s.subtree = addToTree(arr);
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} else
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if (arr[start][0] > arr[buildProgress][0]) {
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done = true;
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}
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done = done || (buildProgress >= arr.length);
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}
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return m;
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}
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function treeExpand(n) {
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menu_state[n] = '1';
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var now = new Date();
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fixDate(now);
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now.setTime(now.getTime() + 30 * 24 * 60 * 60 * 1000);
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setCookie('TREEMENU_STATE', menu_state.join('|'),now);
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history.go(0);
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}
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function treeCollapse(n) {
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menu_state[n] = '0';
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var now = new Date();
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fixDate(now);
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now.setTime(now.getTime() + 30 * 24 * 60 * 60 * 1000);
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setCookie('TREEMENU_STATE', menu_state.join('|'),now);
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history.go(0);
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}
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function buildMenu(arr) {
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var menu_state_cookie = getCookie('TREEMENU_STATE');
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if (menu_state_cookie != null) {
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menu_state = menu_state_cookie.split('|');
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}
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buildProgress = 0;
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return addToTree(arr, 0);
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}
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function treeAddSibling(expand,caption,link,target, number, level) {
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s = this;
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while (s.next != null) {
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s = s.next;
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}
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s.next = new treeNode(expand,caption,link,target, number, level);
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return s.next;
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}
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function treeAddChild(expand, caption, link, target, number, level) {
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var n;
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if (this.subtree == null) {
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n = new treeNode(expand,caption,link,target, number, level);
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this.subtree = n;
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} else {
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n = this.subtree.AddSibling(expand,caption,link,target,number, level);
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}
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return n;
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}
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function indent(level) {
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//for (i=0; i<level; i++) document.write('<img border=0 src="gfx/tree_space.gif" align=middle>');
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}
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function treeDisplay() {
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indent(this.level);
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if (this.subtree == null)
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document.write('<A border=0 HREF="'+this.link+'"><IMG BORDER=0 SRC="'+this.target+'" WIDTH=16 HEIGHT=16 BORDER=0></A>');
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else
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if (this.expand)
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document.write('<a border=0 href="javascript: treeCollapse('+this.number+')"><img BORDER=0 src="/gfx/tree_collapse.gif" border=no></a>');
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else
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document.write('<a border=0 href="javascript: treeExpand('+this.number+')"><img BORDER=0 src="/gfx/tree_expand.gif" border=no></a>');
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if (this.link != '') {
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document.writeln(' <a href="'+this.link+'">'+this.caption+'</a><br>');
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} else {
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if (this.expand)
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document.writeln('<a href="javascript: treeCollapse('+this.number+')">'+this.caption+'</A><br>');
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else
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document.writeln('<a href="javascript: treeExpand('+this.number+')">'+this.caption+'</A><br>');
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}
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if (this.subtree!=null && this.expand) this.subtree.Display();
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if (this.next != null) this.next.Display();
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}
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