paulirish

// find out what prefix this browser supports.

// usage: gimmePrefix('transform') // 'WebkitTransform'
//        returns false if unsupported.

function gimmePrefix(prop){
  var prefixes = ['Moz','Khtml','Webkit','O','ms'],
      elem     = document.createElement('div'),
      upper    = prop.charAt(0).toUpperCase() + prop.slice(1);