function ShowHideContent(contentid,spanid)
{
		
	var b1 = document.getElementById(contentid);
	var b2 = document.getElementById(spanid);	
	if (b1.style.display == '') {
		b1.style.display = 'none';	
		b2.innerHTML="[+]";				
	} else {
		b1.style.display = '';		
		b2.innerHTML="[-]";	
	}
}