Adjust size of an SVG-element to its content

Question

I would like to adjust the dimensions of a SVG-Element to its content.

JSfiddle: http://jsfiddle.net/4pD9N/

Here I got an example. The SVG s

Answer 1

var svg = document.getElementsByTagName("svg")[0];
var bb=svg.getBBox();
var bbx=bb.x;
var bby=bb.y;
var bbw=bb.width;
var bbh=bb.height;
var vb=[bbx,bby,bbw,bbh];
svg.setAttribute("viewBox", vb.join(" ") );