//左边的产品类别展开，关闭
scores = new Array(20);
var numTotal=0;
NS4 = (document.layers) ? 1 : 0;
IE4 = (document.all) ? 1 : 0;
ver4 = (NS4 || IE4) ? 1 : 0;
if (ver4) {    
with (document) {        
write("<STYLE TYPE='text/css'>");        
if (NS4) {            
write(".parent {position:absolute; visibility:visible}");            
write(".child {position:absolute; visibility:visible}");            
write(".regular {position:absolute; visibility:visible}")        
}        
else {            
write(".child {display:none}")        
}        
write("</STYLE>");    
}}
function getIndex(el) {    
ind = null;    
for (i=0; i<document.layers.length; i++) {        
whichEl = document.layers[i];        
if (whichEl.id == el) {            
ind = i;           
 break;       
  }    }    
  return ind;
  }
  function arrange() {    
  nextY = document.layers[firstInd].pageY +document.layers[firstInd].document.height;    
  for (i=firstInd+1; i<document.layers.length; i++) {        
  whichEl = document.layers[i];        
  if (whichEl.visibility != "hide") {            
  whichEl.pageY = nextY;            
  nextY += whichEl.document.height;        
  }    
  }}
  function initIt(){    
  if (!ver4) return;    
  if (NS4) {        
  for (i=0; i<document.layers.length; i++) {            
  whichEl = document.layers[i];            
  if (whichEl.id.indexOf("Child") != -1) whichEl.visibility = "hide";
}        
arrange();    
}    
else {        
divColl = document.all.tags("DIV");        
for (i=0; i<divColl.length; i++) {            
whichEl = divColl(i);            
if (whichEl.className == "child") whichEl.style.display = "none";        
}    }}
function expandIt(el) {	
if (!ver4) return;    
if (IE4) {        
whichEl1 = eval(el + "Child");		
for(i=1;i<=numTotal;i++){			
whichEl = eval(scores[i] + "Child");			
if(whichEl!=whichEl1) {				
whichEl.style.display = "none";			
}		
}        
whichEl1 = eval(el + "Child");        
if (whichEl1.style.display == "none") { 
           whichEl1.style.display = "block"; 
		          }        
else {           
 whichEl1.style.display = "none";        
 }    
 }    
 else {        
 whichEl = eval("document." + el + "Child");		
 for(i=1;i<=numTotal;i++){			
 whichEl = eval("document." + scores[i] + "Child");			
 if(whichEl!=whichEl1) {				
 whichEl.visibility = "hide";			
 }		
 }        
 if (whichEl.visibility == "hide") {
             whichEl.visibility = "show";        
			 }        
			 else {            
			 whichEl.visibility = "hide";        
			 }        
			 arrange();    
			 }}
			 onload = initIt;