var winShowCase

function showItem( strItemName, intSize )
	{
		var strURL, strParams
		strURL = "popups/pop.html?" + strItemName;
		switch( intSize )
			{
				case "quer": 
					strParams = "width=540,height=455,left=50,top=50";
					break;
				case "qua": 
					strParams = "width=540,height=620,left=50,top=50";
					break;
				case "sonder": 
					strParams = "width=540,height=500,left=50,top=50";
					break;
				case "sonder1": 
					strParams = "width=690,height=550,left=50,top=50";
					break;
			}
		
		if ( winShowCase )
			{
				if ( winShowCase.closed != true )
					{
						winShowCase.close();
					}
			}

		winShowCase = window.open( strURL , "pop", strParams );
	}