Code _ javascript skills compatible with Firefox JS scripts in IE

For friends who often use JavaScript, sometimes a script is not compatible with both browsers. Below are some codes compatible with ie and firefox. 1. Windows. event compatible scripts
2. Shield Form submission events
3. Obtain the event Source
4. Add event compatibility
5. How to register innerText in Firefox
6. Length
7. Child controls under the parent Control
8. XmlHttp
1. Windows. event compatible scripts
Function getEvent () {// gets browser events, and is compatible with ie and ff writing.
If (document. all) return window. event;
Func = getEvent. caller;
While (func! = Null ){
Var arg0 = func. arguments [0];
If (arg0 ){
If (arg0.constructor = Event arg0.constructor = MouseEvent)
(Typeof (arg0) = "object" & arg0.preventDefault & arg0.stopPropagation )){
Return arg0;
}
}
Func = func. caller;
}
Return null;
}
Before each event is used, Firefox needs to use getEvent () to obtain it. Otherwise, it is null.
2. Shield Form submission events
Event. returnValue = false; // for IE
Evt. preventDefault (); // for firefox
3. Obtain the event Source
Var source = event. srcElement // IE
Var source=event.tar get // firefox
4. Add event compatibility
Function addEvent (oElement, sEvent, func ){
If (oElement. attachEvent ){
OElement. attachEvent (sEvent, func );
}
Else {
SEvent = sEvent. substring (2, sEvent. length );
OElement. addEventListener (sEvent, func, false );
}
}
Usage: addEvent (window, "onload", Start );
5. How to register innerText in Firefox
// Register firefox innerText
HTMLElement. prototype. _ defineGetter _ ("innerText ",
Function (){
Var anyString = "";
Var childS = this. childNodes;
For (var I = 0; I if (childS [I]. nodeType = 1)
AnyString + = childS [I]. tagName = "BR "? '\ N': childS [I]. innerText;
Else if (childS [I]. nodeType = 3)
AnyString + = childS [I]. nodeValue;
}
Return anyString;
}
);
HTMLElement. prototype. _ defineSetter _ ("innerText ",
Function (sText ){
This. textContent = sText;
}
);
6. Length: the length of FireFox must be "px". IE doesn't matter.
7. Sub-control under the parent control: IE is "children", FireFox is "childNodes"
8. XmlHttp
In IE, the content of the XmlHttp. send (content) method can be empty, while firefox cannot be empty. send ("") should be used; otherwise, error 411 may occur.