function switchMenu(obj)
{
  var el = document.getElementById(obj);
  /*close any expanded content*/
  var parent = el.parentNode;	
  for(i = 0; i < parent.childNodes.length; i++)
  {    
    //collapse only if expanded.
    if(parent.childNodes[i].nodeName == "DIV") parent.childNodes[i].style.display = 'none';
  }
  //Now that all content is collapsed, expand the desired one.		
   el.style.display = '';
}

//function to set selected link to active mode
function setColor(e)
{
 e = getEvent(e);
 var src =  e.srcElement|| e.target;
 if(src != null) 
 {
   var src_parent = src.parentNode;
   if(src_parent.nodeName == "A") src_parent = src_parent.parentNode;
   setNormal( src_parent.parentNode );
   if(src_parent.attributes.removeNamedItem("class"))
   {  
   
	   var namedItem = document.createAttribute("class"); 
	   namedItem.value = "active"; 
	   src_parent.attributes.setNamedItem(namedItem);
	   if("null" == namedItem.value || "" == namedItem.value ) src_parent.setAttribute("class", "active");
   }
 }
}
//function to set all list items to normal mode
function setNormal(parent)
{
	for( var i=0 ; i < parent.childNodes.length ; i++ )
	{
		if( null != parent.childNodes[i].attributes && 
       		parent.childNodes[i].attributes.removeNamedItem("class") )
		{
			var namedItem = document.createAttribute("class"); 
			namedItem.value = "normal"; 
			parent.childNodes[i].attributes.setNamedItem(namedItem);
			if("null" == namedItem.value || "" == namedItem.value ) parent.childNodes[i].setAttribute("class", "normal");

	    }
	}
}
// helper function for setColor.
function getEvent(e)
{
  if(window.event != null) return event;
  return e;
}



	 function show(introId, testimonialId){	
		
		 	 if(document.getElementById(introId).style.display==''){
		 	  document.getElementById(testimonialId).style.display='';
		 	  document.getElementById(introId).style.display='none';
		 	
		  	 }
			 else{
			  document.getElementById(testimonialId).style.display='none';
			  document.getElementById(introId).style.display='';
			 }
		  	 }