Use JavaScript to change the WEBKIT conversion duration on the iPad?

#container {
 -webkit-transition-property: -webkit-transform;
 -webkit-transition-duration: 1s;
 -webkit-transition-timing -function: ease-out; 
 }

 document.getElementById('container').style['-webkit-transition-duration'] = '500s';

I use web-kit transitions in an iPad app. They work very well. But I want to know how to change the converted value using javascript.

#container {
 -webkit-transition-property: -webkit-transform;
 -webkit-transition-duration: 1s;
 -webkit-transition-timing -function: ease-out; 
 }

What do I want to do:

Is this possible?

You can use:

document.getElementById('container').style[' -webkit-transition-duration'] = '500s';

See http://jsfiddle.net/z3bKD/2/.