data:text/html, <span style='font-size: 2em'>Drag this bookmarlet to your bookmarks bar </span>
<A style='font-size: 2em; line-height: 1.5em' href="javascript: (function(){ var continueV = true; var rtn=prompt('Enter random number range, example: 5 33'); var res=rtn.split(' '); var str='Random number between ' + res[0] + ' and ' + (Number(res[1]) - 1); while (continueV) { var rtn2 = prompt(str, Math.floor((Math.random()*(Number(res[1])-Number(res[0])))) + Number(res[0])); if (rtn2 === null) { continueVar = false; break; } } })();">Random Number Generator<a/>