function popupwindow(mylink, windowname, win_options)
{
// Note: win_options can have the following values: width=#, height=#, left=#, top=#, scrollbars=yes|no
if (! window.focus)return true;
var href;
if (typeof(mylink) == 'string') {
	href=mylink
}
else {
	href=mylink.href
}
//alert('The window options passed are: ' + win_options)
window.open(href, windowname, win_options);
return false;
}