GB_FORM = function() {
		  var url    = '/form/demand1.php?win=pop';
		  var options = {
		        caption: '',
		        height: 720,
		        width: 850,
		        fullscreen: false,
		        show_loading: true,
		        reload_on_close: false,
		        overlay_click_close: true,
		        center_win: true
		  }
		  var win = new GB_Window(options);
		  return win.show(url);
		}