function winPopup(tVar)
{       
sWidth = screen.width;
sHeight = screen.height;
xValue = Math.round((sWidth-662)/2);
yValue =  Math.round((sHeight-560)/2);
newWindow = window.open(tVar,"window2","toolbar=no,location=no,menubar=no,directories=no,status=no,scrollbars=yes,height=560,width=662,titlebar=yes,screenX="+xValue+",screenY="+yValue+",top="+yValue+",left="+xValue+",resizable=no");
newWindow.creator=self
newWindow.focus();
}

function winPopupSmall(tVar)
{       
sWidth = screen.width;
sHeight = screen.height;
xValue = Math.round((sWidth-600)/2);
yValue =  Math.round((sHeight-400)/2);
newWindow = window.open(tVar,"window2","toolbar=no,location=no,menubar=no,directories=no,status=no,scrollbars=yes,height=400,width=600,titlebar=yes,screenX="+xValue+",screenY="+yValue+",top="+yValue+",left="+xValue+",resizable=no");
newWindow.creator=self
newWindow.focus();
}