");outputFrame.close();window.status="";}// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~// drawBranch() - GENERAL FUNCTION - used by the drawTree() function to recursively draw all// visable nodes in the tree structure.function drawBranch(startNode,structureString) {var children = extractChildrenOf(startNode);var currentIndex = 1;while (currentIndex <= children.length) {// The value for "currentIndex" determines how branches are open !!!// && (currentIndex < 5 || currentIndex == 9 || currentIndex == 10)) {if (firstTreeCall == true) {children[currentIndex].open = 1}outputFrame.write(structureString);if (children[currentIndex].type == 'link') {if (children[currentIndex].icon == "") {var imageString = defaultLinkIcon;} else {var imageString = children[currentIndex].icon}if (children[currentIndex].target == "") {var targetFrame = defaultTargetFrame;} else {var targetFrame = children[currentIndex].target}if (currentIndex != children.length) {outputFrame.write("![English Linguistics in Essen (1)](https://i0.wp.com/www.uni-due.de/" "English Linguistics in Essen (1)")
")} else {outputFrame.write("")}if (children[currentIndex].parent == "hist_eng" || children[currentIndex].parent == "ref_guide" ) {outputFrame.write("" + children[currentIndex].name + "
\n")} else {outputFrame.write("" + children[currentIndex].name + "
\n")}} else {var newStructure = structureString;if (children[currentIndex].iconClosed == "") {var iconClosed = "img-folder-closed-" + structureStyle + ".gif"} else {var iconClosed = children[currentIndex].iconClosed}if (children[currentIndex].iconOpen == "") {var iconOpen = "img-folder-open-" + structureStyle + ".gif"} else {var iconOpen = children[currentIndex].iconOpen}if (currentIndex != children.length) {if (children[currentIndex].open == 0) {outputFrame.write("")outputFrame.write("" + children[currentIndex].name + "
\n")} else {outputFrame.write("");outputFrame.write("" + children[currentIndex].name + "
\n");newStructure = newStructure + "";drawBranch(children[currentIndex].id,newStructure); }} else {if (children[currentIndex].open == 0) {outputFrame.write("")outputFrame.write("" + children[currentIndex].name + "
\n")} else {outputFrame.write("");outputFrame.write("" + children[currentIndex].name + "
\n");newStructure = newStructure + "";drawBranch(children[currentIndex].id,newStructure); }}}currentIndex++;}}// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~// toggleFolder() - GENERAL FUNCTION - opens/closes folder nodes.function toggleFolder(id,status) {var nodeIndex = indexOfNode(id); treeData[nodeIndex].open = status; timeOutId = setTimeout("drawTree()",100)}// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~// indexOfNode() - GENERAL FUNCTION - finds the index in the treeData Collection of the node// with the given id.function indexOfNode(id) {var currentIndex = 1;while (currentIndex <= treeData.length) {if ((treeData[currentIndex].type == 'root') || (treeData[currentIndex].type == 'folder')) {if (treeData[currentIndex].id == id) {return currentIndex}} currentIndex++} return -1}// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~// extractChildrenOf() - GENERAL FUNCTION - extracts and returns a Collection containing all// of the node's immediate children nodes.function extractChildrenOf(node) {var children = new Collection();var currentIndex = 1; while (currentIndex <= treeData.length) {if ((treeData[currentIndex].type == 'folder') || (treeData[currentIndex].type == 'link')) {if (treeData[currentIndex].parent == node) {children.add(treeData[currentIndex])}}currentIndex++} return children}// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~// Collection() - OBJECT - a dynamic storage structure similar to an Array.function Collection() {this.length = 0; this.add = add; return this}// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~// add() - METHOD of Collection - adds an object to a Collection.function add(object) {this.length++; this[this.length] = object}// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~// RootNode() - OBJECT - represents the top-most node of the hierarchial tree.function RootNode(id,name,url,target,icon) {this.id = id;this.name = name;this.url = url;this.target = target;this.icon = icon;this.type = 'root';return this}// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~// FolderNode() - OBJECT - represents a node which branches to contain other nodes.function FolderNode(id,parent,name,iconClosed,iconOpen) {this.id = id;this.parent = parent;this.name = name;this.iconClosed = iconClosed;this.iconOpen = iconOpen;this.type = 'folder';this.open = 0;return this}// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~// LinkNode() - OBJECT - a node that represents a link using a URL.function LinkNode(parent,name,url,target,icon) {this.parent = parent;this.name = name;this.url = url;this.target = target;this.icon = icon;this.type = 'link';return this}// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~// PopUp() - OBJECT - opens a window which display a link using a URL.function PopUp(url) {var win_width = screen.width - 200var win_height = screen.height - 260var win_left = (screen.width-win_width) - 20var win_top = ((screen.height-win_height) / 2) - 70 var Parameter="scrollbars=yes,location=no,resizable=yes,directories=no,status=yes,menubar=yes,toolbar=yes,left=" + win_left + ",top=" + win_top + ",width=" + win_width + ",height=" + win_height; pop = window.open(url, '', Parameter); pop = true;// if ((( navigator.appName == 'Netscape' ) && (parseFloat(navigator.appVersion) >= 3)) ||( parseFloat(navigator.appVersion) >= 4 ))// {// pop.focus();// }// else// {// pop = true;// } }// End Hiding -->var firstTreeCall = true
