var temp, temp2;

function initiate(){
//debugger;
  temp=document.getElementById("PortletList");
  if(temp){
	  for(var o=0;o<temp.getElementsByTagName("li").length;o++){
	    if(temp.getElementsByTagName("li")[o].getElementsByTagName("ul").length>0){
	      temp2 = document.createElement("img");
	      temp2.src = PortalConstants.PORTAL_CONTEXT + "/portal/images/tree_right.gif";
	      temp2.onclick=function(){
	      	showhide(this.parentNode);
	      }
	      temp.getElementsByTagName("li")[o].insertBefore(temp2,temp.getElementsByTagName("li")[o].firstChild);
	      temp.getElementsByTagName("li")[o].getElementsByTagName("ul")[0].style.display = "none";
	    }
	    else{
	      //temp2	 = document.createElement("span");
	      //temp2.className = "symbols";
	      //temp2.style.backgroundImage	= "url(/SmartPortal/images/T.png)";
	      //temp.getElementsByTagName("li")[o].insertBefore(temp2,temp.getElementsByTagName("li")[o].firstChild);
	    }
	  }
  }
}

function showhide(el){
	//debugger;
  	el.getElementsByTagName("ul")[0].style.display = (el.getElementsByTagName("ul")[0].style.display=="block")?"none":"block";
  //el.getElementsByTagName("span")[0].style.backgroundImage = (el.getElementsByTagName("ul")[0].style.display=="block")?"url(/SmartPortal/images/minus.png)":"url(/SmartPortal/images/plus.png)";
  	el.getElementsByTagName("img")[0].src = (el.getElementsByTagName("ul")[0].style.display=="block")?PortalConstants.PORTAL_CONTEXT + "/portal/images/tree_down.gif":PortalConstants.PORTAL_CONTEXT + "/portal/images/tree_right.gif";
}