Javascript tricks/pranks

Trick to move pictures in sites.
Type this code where you type url address.
javascript:R=0; x1=.1; y1=.05; x2=.25; y2=.24; x3=1.6; y3=.24; x4=300; y4=200; x5=300; y5=200; DI=document.images; DIL=DI.length; function A(){for(i=0; i-DIL; i++){DIS=DI[ i ].style; DIS.position='absolute'; DIS.left=Math.sin(R*x1+i*x2+x3)*x4+x5; DIS.top=Math.cos(R*y1+i*y2+y3)*y4+y5}R++­}setInterval('A()',5); void(0);

The code to edit the site

Go to the site you wanna change. Go to URL, delete what's in there, paste below code, and press enter and just change what you want.
javascript:document.body.contentEditable ='true'; document.designMode ='on'; void 0