My Ajax download code
<! –
String.prototype.getParam = function (name)
(
Var reg = new RegExp ("(^|;| \ \ s) "+ name +" \ \ s *: \ \ s *([^;]*)( \ \ s |; | $) "," i " );
Var str = this.replace (/(;[^:]+)(;|$)/ g, function (a, b, c) (return b.replace (/; / g, "\ x0f") + c ;));
Var r = str.match (reg);
If (r! = Null)
Return unescape (r [2]. Replace (/ [\ x0f] / g, ";"));
Return "";
)
Function getObjectById (id)
(
If (typeof (id)! = "String" | | id == "") return null;
If (document.all) return document.all (id);
If (document.getElementById) return document.getElementById (id);
Try (return eval (id);) catch (e) (return null;)
)
Function MzTreeView (Tname)
(
If (typeof (Tname)! = "String" | | Tname == "")
Throw (new Error (-1, 'no Class Name'));
This.divider = "_";
This.url = "#";
This.target = "_self";
This.name = Tname;
This.index = 0;
This.nodes = ();
This.nodeFilePath = "";
This.currentNode = null;
Var highLight = "# 0A246A";
Var highLightText = "# FFFFFF";
Var mouseOverBgColor = "# D4D0C8";
This.createHTML = function (node, AtEnd)
(
Var data = node.data;
Var id = node.id;
Var url = node.url;
If (! Url) url = this.url;
If (data) url + = (url.indexOf ( "\ ?")==- 1?" \ ?":"&") + Data;
Var HCN = node.hasChild, isRoot node.parentId == = "0";
If (isRoot & node.icon =="") node.icon = "root";
If (HCN node.icon =="") node.icon =? "Folder": "file";
Node.iconExpand = HCN? AtEnd? "PM2": "PM1": AtEnd? "L2": "L1";
If (node.id! = "0" & &! IsRoot) node.childAppend + = node.parentNode.childAppend
"<IMG Border='0' align='absmiddle' src='"+this.icons[(AtEnd?"empty":"L4")].src+"'>";
Var nodeHTML = "<DIV noWrap> <SPAN onmouseover = 'this.style.backgroundColor = \" "+
MouseOverBgColor + "\" 'onmouseout =' this.style.backgroundColor = \ "\" '> <NOBR> "+
(IsRoot? "": Node.parentNode.childAppend +
"<IMG border ='0 'align =' absmiddle 'id ='" + + Tname "_expand_" + id + " '" +
(HCN? "Onclick = \" "+ + Tname." Expand ( ' "+ id +"') \ "": "") +
"Src = '" + this.icons [node.iconExpand]. Src + "' style = 'cursor: hand'>")+
"<SPAN oncontextmenu = 'return" Tname + +. "Popupmenu (\" "+ id +" \ ")'"
/ / + "Onclick = \" "+ + Tname." Focus ( ' "+ id +"', true) \ "" + (HCN? "Ondblclick = \" "+ + Tname." Expand ( ' "+ id + " ') \" ":" ")
+ (HCN? "Onclick = \" "+ + Tname." Expand ( ' "+ id +"', true); "Tname + +." Focus ( ' "+ id +"', true); \ "" : "onclick = \" "+ + Tname." focus ( ' "+ id +"', true); \ "")
+">"+
"<IMG border ='0 'align =' absmiddle 'id ='" + + Tname "_icon_" + id + " '" +
"Src = '" + this.icons [node.icon]. Src +"'>"+
"<A class = 'MzTreeview' id = '" + + Tname "_link_" + id + "'";
NodeHTML + = "target = '" + this.target + "'";
NodeHTML + = "href = '" + url + "'";
NodeHTML + = "title = '" + node.hint + "' onclick = '" +
"Return" Tname + +. "Click (\" "+ id +" \ ");'>"+ node.text + "</ A> </ NOBR>" +
"</ SPAN> </ SPAN> </ DIV> \ r \ n"; if (isRoot & node.text =="") nodeHTML = "";
NodeHTML + = "<SPAN id='"+ Tname +"_tree_"+ id +"' style='DISPLAY: none'> </ SPAN>";
Return nodeHTML;
);
Var _d = "\ x0f";
This.node = ();
This.node [ "0"] =
(
"Id": "0",
"Path": "0",
"IsLoad": false,
"ChildNodes": new Array (),
"ChildAppend": ""
"SourceIndex": "0",
"ChildNodesFileName": ""
);
This.XMLHttpLoadFile = function (url, id)
(
Var httpRequest;
If (typeof XMLHttpRequest! = 'Undefined') (
HttpRequest = new XMLHttpRequest ();
)
Else if (typeof ActiveXObject! = 'Undefined') (
HttpRequest = new ActiveXObject ( 'Microsoft.XMLHTTP');
)
If (httpRequest) (
HttpRequest.open ( 'GET', url, false);
HttpRequest.send (null);
If (httpRequest.status == 200)
(
Var textInfo = httpRequest.responseText;
Eval (textInfo);
)
)
)
This.load = function (id, and sign)
(
= Var me this, node = this.node [id];
If (sign & & (id> 0))
(
SetTimeout (me.name +. "Load ( '" + id + "', false)," 1);
GetObjectById (me.name + "_tree_" + id). InnerHTML = node.childAppend +
"<IMG Border='0' align='absmiddle' src='"+this.icons["L2"].src+"'>" +
"<IMG Border='0' align='absmiddle' src='"+this.icons["file"].src+"'>" +
"<Span style = 'background-Color:" + + highLight "color:" + + highLightText
"Font-size: 9pt '>" + unescape ( "% u52A0% u8F7D% u4E2D") +"…</ span> ";
Return;
)
If (! Node.isLoad)
(
If ((node.childNodesFileName) & & (node.childNodesFileName! = "Undefined ")&&( node.childNodesFileName.length> 0))
(
This.XMLHttpLoadFile (node.childNodesFileName, id);
Node.isLoad = true;
)
)
Var sid = node.sourceIndex.substr (node.sourceIndex.indexOf (this.divider) + this.divider.length);
Var str = "(^|"+ _d +")"+ sid + + this.divider +"[^"+ _d this.divider +"]+("+ _d +"|$)";
Var reg = new RegExp (str, "g"), cns = this.names.match (reg), tcn = this.node [id]. ChildNodes;
If (cns) (
Reg = new RegExp (_d, "g");
For (var i = 0; i <cns.length; i + +)
(
Var tmp [i] = cns. Replace (reg, "");
Tcn [tcn.length] = this.nodeInit (tmp, id);
)
)
Node.isLoad = true; if (node.id == "0") return;
This.drawNode (id);
);
This.nodeInit = function (sourceIndex, parentId)
(
This.index + +;
Var param = this.nodes [sourceIndex];
Var hint = param.getParam ( "hint");
Var text = param.getParam ( "text");
Var childNodesFileNameValue = param.getParam ( "childNodesFileName");
Var sid = sourceIndex.substr (sourceIndex.indexOf (this.divider) + this.divider.length);
This.node [this.index] = (
"Id": this.index,
"Text": text,
"Hint": hint? Hint: text,
"Icon": param.getParam ( "icon")
"Path": this.node [parentId]. Path + + this.index this.divider,
"IsLoad": false,
"IsExpand": false,
"ParentId": parentId,
"ParentNode": this.node [parentId]
"SourceIndex": sourceIndex,
"ChildAppend": ""
"ChildNodesFileName": childNodesFileNameValue (childNodesFileNameValue this.nodeFilePath +): ""
"Url": param.getParam ( "url")
"Data": param.getParam ( "data")
);
If (childNodesFileNameValue)
(
This.node [this.index]. HasChild = true;
)
Else
(
This.node [this.index]. HasChild = this.names.indexOf (sid _d + + this.divider)> -1;
)
If (this.node [this.index]. HasChild) this.node [this.index]. ChildNodes = new Array ();
This.nodes [sourceIndex] = this.index;
Return this.node [this.index];
);
This.drawNode = function (id)
(
Var tcn = this.node [id]. ChildNodes, str = "";
For (var i = 0; i <tcn.length; i + +) str + = this.createHTML (tcn [i], i == tcn.length-1);
GetObjectById (Tname + "_tree_" + id). InnerHTML = str;
);
This.getPath = function (id)
(
Var A = new Array (); A [0] = id, pid = id;
While (id! = "0" & id !="")
(
"(^|"+_ Var str = d + d +")([^"+_ this.divider +"]+"+ this.divider + id +")("+_ d +"|$)";
Var ids = this.names.match (new RegExp (str, "g"));
If (ids)
(
Id = ids [0]. Replace (_d, ""). Split (this.divider) [0];
A [A.length] = id;
) Else break;
)
Return A.reverse ();
);
This.focus = function (id, onlySimpleFocus)
(
If (! This.currentNode) this.node this.currentNode = [ "0"]; if (! OnlySimpleFocus) (
If (typeof (this.node [id ])==" undefined ") = var apid this.getPath (id);
This.node else var apid = [id]. Path.split (this.divider);
For (var i = 0; i <apid.length-1; i + +) this.expand (apid [i], true);)
Var a = getObjectById (Tname + "_link_" + id); if (a) (a.focus ();// alert ( "focus" + id);
Var link = getObjectById (Tname + "_link_" + this.currentNode.id);
If (link) with (link.style) (color = ""; backgroundColor ="";}
With (a.style) (color = highLightText; backgroundColor = highLight;)
This.node this.currentNode = [id];)
);
This.expand = function (id, sureExpand)
(
Var node = this.node [id];
If (sureExpand & node.isExpand) return;
Var area = getObjectById (Tname + "_tree_" + id);
If (area)
(
Var icon = this.icons [node.icon];
Var iconE = this.iconsExpand [node.icon];
Var exp = this.icons [node.iconExpand];
Var expE = this.iconsExpand [node.iconExpand];
= = Var Bool node.isExpand sureExpand | | area.style.display == "none";
Var img = getObjectById (Tname + "_icon_" + id);
If (img) img.src =! Bool? Icon.src: typeof (iconE) == "undefined"? Icon.src: iconE.src;
Var img = getObjectById (Tname + "_expand_" + id);
If (img) img.src =! Bool? Exp.src: typeof (expE) == "undefined"? Exp.src: expE.src;
If (! Bool & this.currentNode.path.indexOf (node.path) == 0)
(
This.focus (id, true);
This.click (id);
)
Area.style.display = Bool? "Block": "none";
If (! Node.isLoad)
(
This.load (id, true);
)
)
);
This.toString = function ()
(
Var a = new Array (); for (id in this.nodes) a [a.length] = id;
This.names = a.join (_d _d +); this.load ( "0", true);
Var rootCN this.node = [ "0"]. ChildNodes;
Var str = "<A id='"+ Tname +"_RootLink' href='#' style='DISPLAY: none'> </ A>";
If (rootCN.length> 0)
(
For (var i = 0; i <rootCN.length; i + +) str + = this.createHTML (rootCN [i], i == rootCN.length-1);
SetTimeout (Tname +. "Expand ( '" + rootCN [0]. Id + "', true);" +
Tname +. "Focus ( '" + rootCN [0]. Id +"'); "Tname + +." AtRootIsEmpty () ", 10);
)
Return str;
);
)
MzTreeView.prototype.setIconPath = function (path)
(
This.icons = (
L0: 'L0.gif', / / ³
L1: 'L1.gif', / / Ç
L2: 'L2.gif', / / »
L3: 'L3.gif', / / ¥
L4: 'L4.gif', / / §
PM0: 'P0.gif', / / ³
PM1: 'P1.gif', / / Ç
PM2: 'P2.gif', / / »
PM3: 'P3.gif', / / ¥
Empty: 'L5.gif', / / blank
Root: 'root.gif', / / root
Folder: 'folder.gif', / / folder
File: 'file.gif', / / file
Event: 'event.gif'
Object: 'object.gif'
Behavior: 'behavior.gif'
Property: 'property.gif'
Method: 'method.gif'
Collection: 'collection.gif'
Exit: 'exit.gif'
);
This.iconsExpand = (
PM0: 'M0.gif', / / ³
PM1: 'M1.gif', / / Ç
PM2: 'M2.gif', / / »
PM3: 'M3.gif', / / ¥
Folder: 'folderopen.gif'
Exit: 'exit.gif'
);
For (var i in this.icons)
(
Var tmp = this.icons [i];
This.icons [i] = new Image ();
This.icons [i]. Path + src = tmp;
)
For (var i in this.iconsExpand)
(
Var tmp = this.iconsExpand [i];
This.iconsExpand [i] = new Image ();
This.iconsExpand [i]. Path + src = tmp;
)
)
MzTreeView.prototype.atRootIsEmpty = function ()
(
Var RCN this.node = [ "0"]. ChildNodes;
For (var i = 0; i <RCN.length; i + +)
(
If (RCN [i]. Text =="")
(
Var node = RCN [i]. ChildNodes [0] = node.hasChild HCN;
Node.iconExpand [i] = RCN. ChildNodes.length> 1? HCN? "PM0": "L0": HCN? "PM3": "L3"
GetObjectById (this.name + "_expand_" + node.id). Src = this.icons [node.iconExpand]. Src;
)
)
);
MzTreeView.prototype.popupmenu = function (id)
(
Try
(
If (this.popupMenu)
(
If (id)
(
This.node this.popupMenu.data = [id]. Data;
This.node this.popupMenu.treeviewitem = [id];
)
For (var i = 0; i <this.popupMenu.items.length; i + +)
(
If (this.popupMenu.items [i]. Bind! = "")
This.popupMenu.items [i]. Bind Tname + = "_tree_" + Tname;
)
This.popupMenu.show (window.event, window.event.srcElement);
Return false;
)
Else return true;
) Catch (e) ()
);
MzTreeView.prototype.click = function (id)
(
If ((this.node [id]. Url == this.url) | | ((this.node [id]. Url == "")&&( this.node [id]. Data == "")) ) return false;
Return true;
);
/ / ->
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