function init() {
		
		
		var tree = new YAHOO.widget.TreeView("treediv");
		
		
		var root = tree.getRoot();
		
		
		    var ahmedDocsRootOne = new YAHOO.widget.TextNode("高中数学", root, true);
            
            ahmedDocs = new YAHOO.widget.TextNode("必修部分", ahmedDocsRootOne, true);
            
        	myobj = { label: "第一章 集合与函数的概念", id:"501" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false);  

               myobj = { label: "第二章 基本初等函数I", id:"502" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false);

               myobj = { label: "第三章 函数的应用", id:"503" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

               myobj = { label: "第一章空间几何体", id:"504" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

              myobj = { label: "第二章点、直线、平面之间的位置", id:"505" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false);

              myobj = { label: "第三章直线与方程", id:"506" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

              myobj = { label: "第四章圆与方程", id:"507" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

              myobj = { label: "第一章算法初步", id:"508" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

               myobj = { label: "第二章统计", id:"509" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

               myobj = { label: "第三章概率", id:"510" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false);

               myobj = { label: "第一章三角函数", id:"511" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

              myobj = { label: "第二章　平面向量", id:"512" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

               myobj = { label: "第三章　三角恒等变换", id:"513" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

               myobj = { label: "第一章　解三角形", id:"514" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

               myobj = { label: "第二章数列", id:"515" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false);

               myobj = { label: "第三章不等式", id:"516" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false);          
 	   
      ahmedDocs = new YAHOO.widget.TextNode("选修1系列", ahmedDocsRootOne, true);
            
        	myobj = { label: "1.1常用逻辑用语", id:"671" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

                myobj = { label: "1.2圆锥曲线与方程", id:"672" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

                myobj = { label: "1.3导数及其应用", id:"673" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

                myobj = { label: "1.4统计案例", id:"674" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 


                myobj = { label: "1.5推理与证明", id:"675" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 


                myobj = { label: "1.6数系的扩充与复数的引入", id:"676" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 


                 myobj = { label: "1.7框图", id:"677" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false);

       ahmedDocs = new YAHOO.widget.TextNode("选修2系列", ahmedDocsRootOne, true);
            
        	myobj = { label: "2.1常用逻辑用语", id:"679" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

                myobj = { label: "2.2圆锥曲线与方程", id:"680" } ; 
 			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

                myobj = { label: "2.3空间中的向量与立体几何", id:"681" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

                myobj = { label: "2.4导数及其应用", id:"682" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

                myobj = { label: "2.5推理与证明", id:"683" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

                myobj = { label: "2.6数系的扩充与复数的引入", id:"684" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

                myobj = { label: "2.7计数原理", id:"685" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

                myobj = { label: "2.8统计案例", id:"686" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

                myobj = { label: "2.9概率", id:"687" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

         ahmedDocs = new YAHOO.widget.TextNode("选修3系列", ahmedDocsRootOne, true);
            
        	myobj = { label: "3.1数学史选讲", id:"689" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

                myobj = { label: "3.2信息安全与密码", id:"690" } ; 
 			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

                myobj = { label: "3.3球面上的几何", id:"691" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

                myobj = { label: "3.4对称与群", id:"692" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

                myobj = { label: "3.5欧拉公式与闭曲面分类", id:"693" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

                myobj = { label: "3.6三等分角与数域扩充", id:"694" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false);


       ahmedDocs = new YAHOO.widget.TextNode("选修4系列", ahmedDocsRootOne, true);
            
        	myobj = { label: "4.1几何证明选讲", id:"696" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

                myobj = { label: "4.2矩阵与变换", id:"697" } ; 
 			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

                myobj = { label: "4.3数列与差分", id:"698" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

                myobj = { label: "4.4坐标系与参数方程", id:"699" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

                myobj = { label: "4.5不等式选讲", id:"700" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

                myobj = { label: "4.6初等数论初步", id:"701" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

                myobj = { label: "4.7优选法与试验设计初步", id:"702" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

                myobj = { label: "4.8统筹法与图论初步", id:"703" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false); 

                myobj = { label: "4.9风险与决策", id:"704" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false);

                myobj = { label: "4.10开关电路与布尔代数", id:"705" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, ahmedDocs, false);   

                    

		
		var sushDocs = new YAHOO.widget.TextNode("其他", root, true);
		
		
			
			
			myobj = { label: "各地高考", id:"9" } ; 
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, sushDocs, false);
			
			
				myobj = { label: "数学竞赛", id:"10" } ;
			var ahmedMsWord = new YAHOO.widget.TextNode(myobj, sushDocs, false);
			
			
			
            tree.subscribe("labelClick", function(node) { 
            
	           if(node.data.id)
              {
                  currentlessonid = node.data.id;
            }
              else
              {
                 currentlessonid =0
            } 
            if($('inputtext'))
            {
              if(node.data.label)
              {
                 $('inputtext').value  = node.data.label;
              }
              else
              {
                 $('inputtext').value  = "";
              }
            }
			else
			{
			   getpage(1);
			}
	       }); 
	
	
		tree.draw();
        tree.collapseAll();
        ahmedDocsRootOne.expand(); 
	}
	//Add an onDOMReady handler to build the tree when the document is ready
     
function begin() {
	  setTimeout("init()",1000); 

	}
    YAHOO.util.Event.onDOMReady(begin);