console.log( suuid() ); // somethiing like 'e1bdadd6'

function suuid() {
  var sm = [], i = 256;
  while (i--)
    sm[ i ] = ( i < 16 ? '0' : '' ) + ( i ).toString( 16 );
  var uu = Math.random() * 0xffffffff | 0;
  return sm[ uu & 0xff ] +
    sm[ uu >> 8 & 0xff ] +
    sm[ uu >> 16 & 0xff ] +
    sm[ uu >> 24 & 0xff ];
}