var rimages = new Array();
rimages[0] = "images/random01.jpg";
rimages[1] = "images/random02.jpg";
rimages[2] = "images/random03.jpg";
rimages[3] = "images/random04.jpg";
rimages[4] = "images/random05.jpg";
function grabImage() {
	document.write("<img src='" + rimages[Math.round(Math.random()*4)] + "' style='border:1px solid #000;' alt='Random Image' />");
}