var tree1;
var  tree2;
var  tree3;
var  tree4;
var  tree5;
var  tree6;
var  tree7;
 
  var treeid1=document.getElementById("tree1");
 var treeid2=document.getElementById("tree2");
 var treeid3=document.getElementById("tree3");
 var treeid4=document.getElementById("tree4");
 var treeid5=document.getElementById("tree5");
  var treeid6=document.getElementById("tree6");
 var treeid7=document.getElementById("tree7");
 

var openorclosetree=document.getElementById("openorclosetree");

  function treeclose(){
  tree1=false;
  tree2=false;
  tree3=false;
  tree4=false;
  tree5=false; 
    tree6=false;
  tree7=false; 

treeid1.style.setAttribute("display","none");
treeid2.style.setAttribute("display","none");
treeid3.style.setAttribute("display","none");
treeid4.style.setAttribute("display","none");
treeid5.style.setAttribute("display","none");
treeid6.style.setAttribute("display","none");
treeid7.style.setAttribute("display","none");

  }
   treeclose();//初始化；  
 var myall=false;
 openorclosetree.innerHTML="  >> 展开所有类别";
 
 
  function treeopen(){
  tree1=true;
  tree2=true;
  tree3=true;
  tree4=true;
  tree5=true;
  tree6=true;
  tree7=true;
  

treeid1.style.setAttribute("display","block");
treeid2.style.setAttribute("display","block");
treeid3.style.setAttribute("display","block");
treeid4.style.setAttribute("display","block");
treeid5.style.setAttribute("display","block");
treeid6.style.setAttribute("display","block");
treeid7.style.setAttribute("display","block");

  } 
  
 function treeopenorclore(){ 	
	 
	 if(myall){
		 myall=false;
		 treeclose();
		  openorclosetree.innerHTML="  >> 展开所有类别";
	 }else
	 {
		  myall=true;
		 treeopen();
		  openorclosetree.innerHTML="  >> 关闭所有类别";
	 }
	 
 }
 function panduan(){
 	 if (tree1 &&tree2&&tree3&&tree4&&tree5&&tree6&&tree7)
	 {	 myall=true;
	   openorclosetree.innerHTML="  >> 关闭所有类别";
	 }
	 if (tree1==false && tree2==false && tree3==false && tree4==false && tree5==false && tree6==false && tree7==false)
	 {	 myall=false;
	 openorclosetree.innerHTML="  >> 展开所有类别";
	 }	
 }
  function treezs(idm){
	  switch(idm)
	  {
		  case "1":
		  if(tree1){
			  tree1=false;
			  treeid1.style.setAttribute("display","none");			  
		  }else
		  {
			   tree1=true;
			  treeid1.style.setAttribute("display","block");		 
		  }
		  panduan();
		  break;
		   case "2":
		  if(tree2){
			  tree2=false;
			  treeid2.style.setAttribute("display","none");			  
		  }else
		  {
			   tree2=true;
			  treeid2.style.setAttribute("display","block");		 
		  }
		  panduan();
		  break;
		  
		    case "3":
		  if(tree3){
			  tree3=false;
			  treeid3.style.setAttribute("display","none");			  
		  }else
		  {
			   tree3=true;
			  treeid3.style.setAttribute("display","block");		 
		  }
		  panduan();
		  break;
		    case "4":
		  if(tree4){
			  tree4=false;
			  treeid4.style.setAttribute("display","none");			  
		  }else
		  {
			   tree4=true;
			  treeid4.style.setAttribute("display","block");		 
		  }
		  panduan();
		  break;
		    case "5":
		  if(tree5){
			  tree5=false;
			  treeid5.style.setAttribute("display","none");			  
		  }else
		  {
			   tree5=true;
			  treeid5.style.setAttribute("display","block");		 
		  }
		  panduan();
		  break;
		
		    case "6":
		  if(tree6){
			  tree6=false;
			  treeid6.style.setAttribute("display","none");			  
		  }else
		  {
			   tree6=true;
			  treeid6.style.setAttribute("display","block");		 
		  }
		  panduan();
		  break;
		  
		 case "7":
		  if(tree7){
			  tree7=false;
			  treeid7.style.setAttribute("display","none");			  
		  }else
		  {
			   tree7=true;
			  treeid7.style.setAttribute("display","block");		 
		  }
		  panduan();
		  break;
		  
		  }  
		  
	  
  }