function popupwindow(url)
{
		mywindow = window.open(url, 'Tracker', 'status=no,toolbar=no,location=no,menubar=no,scrollbars=yes,resizable=yes,width=500,height=500');
		mywindow.location = url;
		mywindow.moveTo(0,0);
}


function popupwindowwidth(url, wwidth)
{
		mywindow = window.open(url, 'Tracker', 'status=no,toolbar=no,location=no,menubar=no,scrollbars=yes,resizable=yes,width=' + wwidth + ',height=500');
		mywindow.location = url;
		mywindow.moveTo(0,0);
}


function popupwindowwidthheight(url, wwidth, wheight)
{
		mywindow = window.open(url, 'Tracker', 'status=no,toolbar=no,location=no,menubar=no,scrollbars=yes,resizable=yes,width=' + wwidth + ',height=' + wheight +'');
		mywindow.location = url;
		mywindow.moveTo(0,0);
}




function popupwindowtools(url)
{
		mywindow = window.open(url, 'Tracker', 'status=no,toolbar=yes,location=no,menubar=no,scrollbars=no,resizable=yes,width=600,height=400');
		mywindow.location = url;
		mywindow.moveTo(0,0);
}

function setfocus(f)
{
f.value = "";
}