var number_of_cells = 25;


function shoh(id) 
{ 
	for(var i=0; i<=number_of_cells; i++) 
		{
			var tempid = "itm_";
			tempid = tempid + i;
			//alert(id);
			if (document.getElementById(tempid))
			{
			document.getElementById(tempid).style.display = 'none';
			}
		}
		document.getElementById(id).style.display = 'block';	
}