Common JS compatibility issues

1. Get the distance of the scroll bar

var Stop=document.documentelement.scrolltop | | Document.body.scrollTop

2. Get non-inline styles

IE:CURRENTSTYLE[ATTR]

Standard: Getcomputedstyle[attr]

function GetStyle (obj,attr) {

if (Obj.currentstyle) {

return obj.currentstyle[attr];

}else{

Return getComputedStyle (Obj,false) [attr];

}

}

3. Get the Event object

var e = e | | Event

4. Get keyboard information

E.keycode | | E.which

5. Blocking the browser's default behavior

function Prevent (e) {

if (E.preventdefault) {

E.preventdefault ();

}else{

E.returnvalue=false;

}

}

6. Block Event bubbling

E.stoppropagation? E.stoppropagation (): e.cancelbubble=true;

7. Event Monitoring

AddEventListener ()

Attachevent ()

8. Event Unbind

RemoveEventListener ()

DetachEvent ()

9. Get the event source

E.target | | E.srcelement;

Common JS compatibility issues