var flag;
flag=0;

function toggle(content_id)
{
	var obj = document.getElementById(content_id);
	var link_obj = eval("document.getElementById('p"+content_id+"')");
	if(obj.style.display=='none')
	{
		obj.style.display='';
		link_obj.innerHTML="<img src='images/minus.gif'>";
	}
	else
	{
		obj.style.display='none';
		link_obj.innerHTML="<img src='images/plus.gif'>";
	}
}	

function controlDiv(id, noOfItems)
{
	for(i=1;i<=noOfItems;i++)
	{
		iobj	=	document.getElementById("pl_min"+i);
		cobj	=	document.getElementById("ans"+i);
		
		if(id != i)
		{
			cobj.style.display = "none";
			iobj.src = "images/expand.gif";
		}
	}

	iobj	=	document.getElementById("pl_min"+id);
	cobj	=	document.getElementById("ans"+id);

	if(cobj.style.display == "block")
	{
		cobj.style.display = "none";
		iobj.src = "images/expand.gif";
	}
	else
	{
		cobj.style.display = "block";
		iobj.src = "images/collapse.gif";
	}
}