var timerID;

function setBlock(dspObj,vType)
{
			var array = new Array('sub1','sub2','sub3','sub4','sub5');

			for(i in array){
				if(dspObj != array[i]){
					document.getElementById(array[i]).style.display = 'none';
				}else{
					document.getElementById(array[i]).style.display = vType;
				}
			}
			clearTimeout (timerID);
}
function holdBlock(dspObj,vType,time)
{
			document.getElementById(dspObj).style.display = vType;
			timerID = setTimeout("clrBlock('"+dspObj+"','none')",time);
}
function clrBlock(dspObj,vType)
{
			document.getElementById(dspObj).style.display = vType;
}