function HideBubble(ID,sControlName, sIdentifier)
{
	if(sIdentifier!='')
		ID = GetPrefix(sControlName, sIdentifier)+ID; 
		
	if (document.getElementById)
		document.getElementById(ID).style.visibility='hidden';
	else if (document.all)
		document.all[ID].style.visibility='hidden';
}

function DisplayBubble(ID,sControlName, sIdentifier)
{
	if(sIdentifier!=''&& sIdentifier!='undefined')
		ID = GetPrefix(sControlName, sIdentifier)+ID; 
		
	if (document.getElementById)
	{
		document.getElementById(ID).style.visibility='visible';
	}
	else if (document.all)
	{
		document.all[ID].style.visibility='visible';
	}
	
}

function GetPrefix(sControlName, sIdentifier)
{
	return sControlName.substring(0, sControlName.indexOf(sIdentifier));
}