function recommendation(itemID) {
	var url = "/functions/recommendation/recommendation.php?itemID="+itemID;
	var width = 640;
	var height = 540;
	var windowname = "recommendation";
	var RandLinks = (window.screen.availWidth - width)/2;
	var RandOben = (window.screen.availHeight - height)/2;
	OpenWin = this.open(url, windowname, "left="+RandLinks+",top="+RandOben+",toolbar=no,menubar=no,location=no,scrollbars=no,resizable=no,height="+height+",width="+width);
	OpenWin.focus();
}