WebImageButton does not change images after being enabled in Javascript

用这

document.getElementById("WebImageButton1").disabled = true;

要鼠标点击了图片才变。

如果鼠标不点用js控制就得这样写：

ig_getWebControlById("WebImageButton1").setEnabled(false);

 

具体见：http://help.infragistics.com/Help/NetAdvantage/NET/2008.1/CLR2.0/html/WebImageButton_Object_CSOM.html