// JavaScript Document
//from old usmle site.




function toggleItem(target) {
  if (document.getElementById(target).style.display == "none")
    document.getElementById(target).style.display = "block"
  else
    document.getElementById(target).style.display = "none";
}

function toggleAll(nameofclass, togglelinkid, togglelinkid_hidden, areAllOpen)
{	
	var show = "Show All Answers »";
	var hide = "Hide All Answers »";
	var itemsfound = new Array;   
	var elements = document.getElementsByTagName('*');   
	for(var i=0;i<elements.length;i++)
	{     
		if(elements[i].className == nameofclass)
		{         
			itemsfound.push(elements[i]);
		}
	}


		for (var i=0; i<itemsfound.length;i++)
		{
			if(areAllOpen == 'true'){ 
			//if(itemsfound[i].style.display == "block")
//			{
				itemsfound[i].style.display = "none";
			//}
			}
			else {
			//if(itemsfound[i].style.display == "none")
			//{
				itemsfound[i].style.display = "block";
			//}
			}
			
			
		}
		document.getElementById(togglelinkid).style.display = "none";
		document.getElementById(togglelinkid_hidden).style.display = "inline";
	
	
}


function rollover(img_src, id)
{
	document.getElementById(id).src = img_src;
}