function pop(url) {

	var browserpop;
	
	var hor;
	var vert;
	var posv;
	var posh;
	
	hor = screen.width;
	vert = screen.height;
	
	posv = (vert-498) / 2;	
	posh = (hor-464) / 2;
	
	browserpop = window.open(url,"neu","width=550, height=550, resizable=yes, status=no, scrollbars=yes, left="+posh+", top="+posv+"");
	
	browserpop.focus();

}

function bookmark() {
	
	if(window.external) {
				
		window.external.AddFavorite(server+phpself,'www.vittel.de');
	} else {
		
		alert("Drücken Sie STRG + D um einen Favoriten zu setzen.");
	}
}