detecting support for CSS transitions

detect-css-transitions.js

// detecting support for CSS transitions
function supportsTransitions() {
	var b = document.body || document.documentElement;
	var s = b.style;
	var p = 'transition';
	if(typeof s[p] == 'string') {return true; }
	
	v = ['Moz', 'Webkit', 'Khtml', 'O', 'ms'],
	p = p.charAt(0).toUpperCase() + p.substr(1);
	for(var i=0; i<v.length; i++) {
	  if(typeof s[v[i] + p] == 'string') { return true; }
	}
	return false;
}
var transitionSupport = true;
if (!supportsTransitions()) {
	transitionSupport = false;
}