function randomImage(location, color) {
   var arrayPics = new Array("01", "02", "03", "04", "05", "06", "07", "08", "09", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22");
   var rPic = Math.floor(Math.random() * arrayPics.length); 
   document['mainImagePic'].src = "images/" + location + "_" + color + "_" + arrayPics[rPic] + ".jpg";

   if (location == "main") {
	   var arrayTitles = new Array("01", "02", "03");
	   var rTitle = Math.floor(Math.random() * arrayTitles.length);
	   document['mainImageTitle'].src = "images/title_" + arrayTitles[rTitle] + ".gif";
   }
 
}