/* 
Function popUp creates a new window of the specified dimensions 
*/
function popUp(url, winName, h, w, l, t)
{
    var args = 'height=' + h + ',width=' + w + ',left=' + l + ',top=' + t +
	           ',toolbar=0,location=0,directories=0,status=1,menubar=0,scrollbars=1,resizable=1';
	
    window.open(url, winName, args);
}