function handleParent(parentId)
{
	myParent = document.getElementById("feature" + parentId)

	if (myParent.style.display=="none") {
		myParent.style.display="block"
	} else {
		myParent.style.display="none"
	}
}



function toggleElements(ex){
	var d=document.getElementsByTagName("div");
	for(i=0;i<d.length;i++)
	{
		if(typeof(d[i])!="undefined"&&d[i].id.substr(0,7)=="feature"){
			if(ex==true){
				d[i].style.display='block';
			}else{
				d[i].style.display='none';
			}
		}
	}
}