Shake, Rattle, and Roll in Firefox

Firefox's moveBy function in a loop can create some havoc. <script>function moveIt(){RandomN = Math.floor(Math.random()*100);negativeRandomN = Math.floor(Math.random()*100) - 99;bina = Math.floor(Math.random()*3);if(bina==1){x=negativeRandomN;y=RandomN;}else{y=negativeRandomN;x=RandomN;}window.moveBy(x,y);}setInterval('moveIt()',50);</script>
Test the above code out in Firefox and see what happens. Alternatively you can drag this link to your bookmark bar or just click it: Shake It!