Conversion of document. All and document. getelementbyid

Document. all is the private Dom of IE, not the W3C standard DOM, so Firefox does not support document. all, while document. getelementbyid is the W3C standard DOM, which is supported by various browsers. If document. All is used on the website, a problem may occur in the Firefox browser! The following provides a solution. If the browser supports document. All but does not support document. getelementbyid, the solution is as follows:

If (document. All &&! Document. getelementbyid ){
Document. getelementbyid = function (ID ){
Return document. All [ID];
}
}

 

In this way, only the W3C standard DOM -- document. getelementbyid can be used during website development.