function showHide(srcElement,srcArrow){
	var divs = document.getElementsByTagName('div');
	var imgs = document.getElementsByTagName('img');
	if(document.getElementById(srcElement).style.display == "") {
		document.getElementById(srcElement).style.display = "none";
		document.getElementById(srcArrow).src="../images/collapse.gif";
	}else{
		for (var i=0;i<divs.length;i++){ 			
			var divIdVal=divs[i].id;
			if(divIdVal.length>7){
				divIdVal=divIdVal.substring(0,4);
				if(divIdVal=="ques"){
					var imgId="img"+divs[i].id;
					if(divs[i].id != srcElement){
						divs[i].style.display = "none";
						document.getElementById(imgId).src="../images/collapse.gif";
					}else{
						divs[i].style.display = "";
						document.getElementById(imgId).src="../images/expand.gif";
					}
				}
				
			}
		}
	}	
}

function hideallDivs()
{
	document.getElementById('question1').style.display = "none";
	document.getElementById('question2').style.display = "none";
	document.getElementById('question3').style.display = "none";
	document.getElementById('question4').style.display = "none";
	document.getElementById('question5').style.display = "none";
	document.getElementById('question6').style.display = "none";
	document.getElementById('question7').style.display = "none";
	document.getElementById('question8').style.display = "none";
	document.getElementById('question9').style.display = "none";
	document.getElementById('question10').style.display = "none";
	document.getElementById('question11').style.display = "none";
	document.getElementById('question12').style.display = "none";
	document.getElementById('question13').style.display = "none";
	document.getElementById('question14').style.display = "none";
	document.getElementById('question15').style.display = "none";
	document.getElementById('question16').style.display = "none";
	document.getElementById('question17').style.display = "none";
	document.getElementById('question18').style.display = "none";
  if(document.getElementById('question19')!= null){
		document.getElementById('question19').style.display = "none";
	}
	if(document.getElementById('question20')!= null){
		document.getElementById('question20').style.display = "none";
	}
}