Array.prototype.random = function(limit) { if (typeof limit == 'undefined' || limit < 0) limit = 1; else if (!limit) limit = this.length; for (var i = 0, source = this, target = new Array(), n = source.length; i < limit && n > 0; i++) { do { var index = Math.random(); } while (index == 1); index = Math.floor(index * n); target.push(source[index]); source[index] = source[--n]; } return target; } document.write(''); document.write(new Array( '

', '

' ).random().join('')); document.write('');