var img1 = "title_1.jpg"
var img2 = "title_2.jpg"
var img3 = "title_3.jpg"
var img4 = "title_4.jpg"
var img5 = "title_5.jpg"

var randomize = Math.round(Math.random()*5)
if (randomize == 1){
newimg = img1
}else if (randomize == 2){
newimg = img2
}else if (randomize ==3){
newimg = img3
}else if (randomize ==4){
newimg = img4
}else{
newimg = img5
}
document.write('<IMG SRC="'+newimg+'" usemap="#titlemap" border="0">')