js 树的操作

  function get_check_data()
     {  
     
     try
        {
        var Url=window.location .href+"";
       var flag_star=Url.indexOf('flag=');
       var flag_end=Url.indexOf('&check')
        var temp=Url.substring(flag_star+5,flag_end);
         
         var  check_star=Url.indexOf('check=');
         var  check_end=Url.indexOf('&star')  ;
         var check_temp=Url.substring(check_star+6,check_end);
             
            var  type=check_temp.split('|')
            var  type_data="";
            for ( i=0;i<type.length;i++)
           {
              type_data=type_data+type[i];
             }
             
           
          
            var flag=parseInt(temp)-1; 
          left_TreeView1.getTreeNode(flag+'').setAttribute('Expanded',true);
          
       
          
           
          // if (temp=='0')
           
               var NodeArray=new Array();
             NodeArray=left_TreeView1.getTreeNode(flag+'').getChildren();
             
             if (check_temp=='0')
             {
               left_TreeView1.getTreeNode(flag+'').setAttribute('Checked',true);
               for (n=0;n<NodeArray.length ;n++)
                    {
                      left_TreeView1.getTreeNode(flag+'.'+n).setAttribute('Checked',true);
                    }
              
             }
             else
             {
             for (j=0 ;j<NodeArray.length ;j++)
             {   
                    for (k=0;k<type.length;k++)
                    {
                     
               if (left_TreeView1.getTreeNode(flag+'.'+j).getAttribute('NodeData')==type[k])
                  
                left_TreeView1.getTreeNode(flag+'.'+j).setAttribute('Checked',true);
                    }
             }
           
          }
          
    // window.alert (temp); 
    // window.alert (check_temp);
        
        }
       
        catch(e)
        {
        
        }
         
     }