ie和firefox兼容（Ie compatible with Firefox）.doc

ie和firefox兼容（Ie compatible with Firefox） IE and Firefox are compatible,.Txt and handsome men shake hands, talk to deep men, talk more with successful men, and live with ordinary men. Today, when testing the code, I found a lot of IE running Ajax, but it was wrong in FF. The incompatibility and unifying methods of IE and Firefox (Firefox) in JavaScript are summarized below: 1. compatible with Firefox outerHTML, no outerHtml method in FF. If (window.HTMLElement) { HTMLElement.prototype.__defineSetter__ (outerHTML, function (sHTML) { VaR, r=this.ownerDocument.createRange (); R.setStartBefore (this); Var df=r.createContextualFragment (sHTML); This.parentNode.replaceChild (DF, this); Return sHTML; }); HTMLElement.prototype.__defineGetter__ (outerHTML, function () { Var attr; Var attrs=this.attributes; Var str= +this.tagName.toLowerCase (); For (VaR i=0; iattrs.length; i++) { Attr=attrs[i]; If (attr.specified) Str+= , +attr.name+=, +attr.value+; } If (... This.canHaveChildren) Return str+ ; Return str+ +this.innerHTML+ / +this.tagName.toLowerCase (+) ; }); HTMLElement.prototype.__defineGetter__ (canHaveChildren, function () { Switch (this.tagName.toLowerCase ()) { Case area: Case base: Case BASEFONT: Case col: Case frame: Case HR: Case img: Case br: Case input: Case isindex: Case link: Case meta: Case param: Return false; } Return true; }); } 2. set class object problem Description: IE, you can use (or) [] gets a collection of objects; Firefox, can only use [] gets a collection object. Solution: unified use [] gets a collection object. 3. custom attribute issues Explanation: under IE, you can use custom properties to obtain custom attributes, or you can use getAttribute () to get custom attributes; under Firefox, you can only use getAttribute () to obtain custom attributes Solution: unified access to custom attributes through getAttribute () 4.eval (idName) problem Description: IE, you can use Eval (idName) or getElementById (idName) to obtain ID for the idName HTML o