function openwin(url, width, height) {
	if (!width) {
		var width = '800';
	}
	if (!height) {
		var height = '600';
	}
	var title = 'IndustryPeople';
	
	var x = (640 - width)/2;
	var y = (480 - height)/2;
	if (screen) {
		y = (screen.availHeight - height)/2;
		x = (screen.availWidth - width)/2;
	}
	
	var properties = 'toolbar=no,location=no,status=no,menubar=no,scrollbars=no,resizable=no,width=' + width + ',height=' + height + ',screenX=' + x + ',screenY=' + y + ',top=' + y + ',left=' + x
	popup = window.open(url, title, properties);
	popup.focus();
}