How can I align the entire script to center? I've never actually coded before in javascript and I just want to modify a quick bookmarklet. I've tried stuff like align=center for different components of the script but no luck. Is there something like <center> (in html) for js?

Thanks

EDIT: basically i want this to be centered on a page

function dEmbed(){

    var iframe = document.createElement(iframe);

    iframe.src = 'http://www.google.com';

    iframe.style.width = w+'px';

    iframe.style.height= h+'px';

    iframe.style.border= 0;

    iframe.style.margin= 0;

    iframe.setAttribute(scrolling,no);

    iframe.setAttribute(id,NAME);

    document.body.insertBefore(iframe, document.body.firstChild);

}