//Declare parameters as follows:
//openPopup('Locatie','Title','yes/no (Toolbars)','yes/no (Resizable)','yes/no (Scrollbars)',800 (wijdte),600 (hoogte));

//Voorbeeld: 
//openPopup('<? $ecp_page->echoLink("professional/webmail/imp/mailbox.php"); ?>','Webmail','yes','yes','yes',800,600);


function openPopup(source_page,title,toolbars,resizable,scrollbars,width,height) {
	var NewWindow = window.open(source_page, title, 'toolbars='+toolbars+',resizable='+resizable+',scrollbars='+scrollbars+',width='+width+',height='+height);
	NewWindow.focus();
}