function popup(mylink, windowname, width, height)
{
if (! window.focus)return true;
var href;
if (typeof(mylink) == 'string')
   href=mylink;
else
   href=mylink.href;

if (width == "")
   width = 800;
   
if (height == "")
   height = 500;

//popupParams = 'width=' + width + ',height=' + height + ',scrollbars=yes,toolbar=1,menubar=1'
popupParams = ''

//working
PrintPageWindow = window.open(href, windowname);
PrintPageWindow.focus();

return false;
}