// JavaScript Document
function showHide(obj) {
 if (document.getElementById(obj).className.indexOf("exp")>=0){
 document.getElementById(obj).className =document.getElementById(obj).className.replace("exp","coll");
 }
 else{ document.getElementById(obj).className =document.getElementById(obj).className.replace("coll","exp");
}
}
function hideDiv(obj)
{
 if(document.getElementById(obj)!=null)
 {
	 if(document.getElementById(obj).className.indexOf("exp")>=0)
	 {
	   document.getElementById(obj).className =document.getElementById(obj).className.replace("exp","coll");
	 }
 }
}