var commPics=new Array();

//change the quotes if desired. Add/ delete additional quotes as desired.

commPics[0]='<img border="0" src="images/commercial.gif" align="right" width="108" height="66">';


var whichquote=Math.floor(Math.random()*(commPics.length)) % commPics.length;

document.write(commPics[whichquote]);