play Hide and Seek with your mozila firefox

Here i am pasting one java script just paste that java script into the mozilla firefox's addresbar
and hit enter. After that your browser gets move automatically

here is the script

javascript:a=0;x=0;y=0;setInterval("a+=.01;x=Math.cos(a*3)*200;y=Math.sin(a*2)*2;moveBy(x,y)",2);void(0)

enjoy.
and thnx for the visit.