function openwin(URL,namn,w,h,scrollbars)
	{ 
	var win = null;
	LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
	TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
	settings='height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scrollbars+',resizable=yes,status=no'
	win = window.open(URL,namn,settings);
	win.focus();
	}