//<!--
function OpenWindow(theURL, winName, width, height) 
{
var leftVal=(screen.width - width) / 2;
var topVal = (screen.height - height) / 2;
window.open(theURL, winName, 'toolbar=no,location=no,scrollbars=yes,width='+width+',height='+height+',left='+leftVal+',top='+topVal)
}

function switchImage(imgName,newImg)
{ 
eval('document.' + imgName + '.src = "' + newImg + '"'); 
}
//-->