function popup(mylink, windowname) 
{
if ( !window.focus)return true;
var href;
if (typeof(mylink) == 'string')
   href=mylink;
else
   href=mylink.href;
   newWin=window.open(href, windowname,'width=590,height=360,scrollbars=no');



return false;
}

function closepopup() {
	if(false == newWin.closed)
	{
		newWin.close();
	}

}