function ChangeImage(){
	bannerImageSmallCount = 51;
	bannerImageLargeCount = 24;
	path = "http://www.calvarysandiego.com/CCSD/images/header/banner_image_";
	
	incrementSmall = Math.floor(Math.random() * bannerImageSmallCount);
	incrementLarge = Math.floor(Math.random() * bannerImageLargeCount);
	
	// change banner image small
	eval("document.banner_image_small.src = '" + path + "small_" + incrementSmall + ".jpg'");
	
	// change banner image large
	eval("document.banner_image_large.src = '" + path + "large_" + incrementLarge + ".jpg'");
}