function contact(lang,url){

	var hw = 480;
	var hg = 520;

	var x = (800-hw)/2;
	var y = (600-hg)/3;

	if (screen) {        	
	   	x = (screen.availWidth - hw)*0.5;
		y = (screen.availHeight - hg)*0.4;
    	}
	url = "../" + lang + "/" + url;
	var aref = "width="+hw+",height="+hg+",screenX="+x+",screenY="+y+",top="+y+",left="+x
	var w = window.open(url,"at",aref+",scrollbars=1,resizable=0,copyhistory=0,directories=0,location=0,menubar=0,status=0,toolbar=0")
}