(function() {  
2	    YAHOO.namespace('widget.alert');  
3	 
4	    alert_old = window.alert;  
5	    window.alert = function(str) {  
6	        YAHOO.widget.alert.dlg.setBody(str);  
7	        YAHOO.widget.alert.dlg.cfg.queueProperty('icon', YAHOO.widget.SimpleDialog.ICON_WARN);  
8	        YAHOO.widget.alert.dlg.cfg.queueProperty('zIndex', 9999);  
9	        YAHOO.widget.alert.dlg.render(document.body);  
10	        if (YAHOO.widget.alert.dlg.bringToTop) {  
11	            YAHOO.widget.alert.dlg.bringToTop();  
12	        }  
13	        YAHOO.widget.alert.dlg.show();  
14	    };  
15	 
16	 
17	    YAHOO.util.Event.on(window, 'load', function() {  
18	 
19	        var handleOK = function() {  
20	            this.hide();  
21	        };  
22	 
23	        YAHOO.widget.alert.dlg = new YAHOO.widget.SimpleDialog('widget_alert', {  
24	            visible:false,  
25	            width: '20em',  
26	            zIndex: 9999,  
27	            close: false,  
28	            fixedcenter: true,  
29	            modal: false,  
30	            draggable: true,  
31	            constraintoviewport: true,   
32	            icon: YAHOO.widget.SimpleDialog.ICON_WARN,  
33	            buttons: [  
34	                { text: 'OK', handler: handleOK, isDefault: true }  
35	                ]  
36	        });  
37	        YAHOO.widget.alert.dlg.setHeader("Alert!");  
38	        YAHOO.widget.alert.dlg.setBody('Alert body passed to window.alert'); // Bug in panel, must have a body when rendered  
39	        YAHOO.widget.alert.dlg.render(document.body);  
40	    });  
41	})();