function index_images(){ 
DIPromoPic = new Array()
DIPromoAlt = new Array()
DIPromoPic[0]='index_image1.jpg'
DIPromoPic[1]='index_image2.jpg'
DIPromoPic[2]='index_image3.jpg'
DIPromoPic[3]='index_image4.jpg'


DIPromoAlt[0]='Students on chassis dyno'
DIPromoAlt[1]='Students in the body electrical class'
DIPromoAlt[2]='Students in the engine electrical class'
DIPromoAlt[3]='Student running transmission dyno'


var DIp = DIPromoPic.length;
var DIRandValue = Math.round(Math.random()*(DIp-1));

document.write('<img src="images/'+DIPromoPic[DIRandValue]+'" WIDTH="310" HEIGHT="340" BORDER="0" ALT="'+DIPromoAlt[DIRandValue]+'" VSPACE="2" usemap="#Map2">');
}

//-->