window.onload = choosePic;

var myPix = new Array("/images/quote01.gif","/images/quote02.gif","/images/quote03.gif","/images/quote04.gif","/images/quote05.gif","/images/quote06.gif","/images/quote07.gif","/images/quote08.gif");

function choosePic() {
	randomNum = Math.floor((Math.random() * myPix.length));
	document.getElementById("blah").src = myPix[randomNum];
}