var img1 = "images/aircraft1.jpg"
var img2 = "images/aircraft2.jpg"
var img3 = "images/aircraft3.jpg"
var img4 = "images/aircraft4.jpg"
var img5 = "images/aircraft5.jpg"
var img6 = "images/aircraft6.jpg"
var img7 = "images/aircraft7.jpg"
var img8 = "images/aircraft8.jpg"
var img9 = "images/aircraft9.jpg"
var img10 = "images/aircraft10.jpg"
var img11 = "images/aircraft11.jpg"
var img12 = "images/aircraft12.jpg"
var img13 = "images/aircraft13.jpg"
					
var randomize = Math.round(Math.random()*13)
if (randomize == 1){
newimg = img1
}else if (randomize == 2){
newimg = img2
}else if (randomize ==3){
newimg = img3
}else if (randomize ==4){
newimg = img4
}else if (randomize ==5){
newimg = img5
}else if (randomize ==6){
newimg = img6
}else if (randomize ==7){
newimg = img7
}else if (randomize ==8){
newimg = img8
}else if (randomize ==9){
newimg = img9
}else if (randomize ==10){
newimg = img10
}else if (randomize ==11){
newimg = img11
}else if (randomize ==12){
newimg = img12
}else{
newimg = img13
}
document.write('<IMG style="z-index: 5;" SRC="'+newimg+'" border="0" width="402" height="252">')