Working in Mozilla but not working under IE

I am using FLotr API to draw charts , and Flotr API is internally using Prototype.js . My Charts are working fine under Mozilla , but if i run charts in IE , its giving me Script Errors .

There is a function inside the Prototype.js file

 function observe(element, eventName, handler) {

    element = $(element);

alert(element);

}

When i put the开发者_开发问答 alert for the element and run with Mozilla it displays as

1. [object Window]
2. [object HTMLDocument]
3. [object HTMLCanvasElement]
4. [object HTMLCanvasElement]
5. [object HTMLCanvasElement]**

But when i run with IE7 it displays

1. [Object]
2. [Object]
3. A run time error
4. object

Internet Explorer 7 does not support the <canvas> element. Thus, the runtime error.

You can use a plug-in to add support for that element, though.

try to include excanvas into your script tags:

http://excanvas.sourceforge.net/

Hope this helps