function random_imglink(){
var myimages=new Array()
//specify random images below. You can have as many as you wish
myimages[1]="/pulmonary/images/header-1.jpg"
myimages[2]="/pulmonary/images/header-2.jpg"
myimages[3]="/pulmonary/images/header-3.jpg"
myimages[4]="/pulmonary/images/header-4.jpg"
myimages[5]="/pulmonary/images/header-5.jpg"
myimages[6]="/pulmonary/images/header-6.jpg"

var ry=Math.floor(Math.random()*myimages.length)
if (ry==0)
ry=1
document.write('<img src="'+myimages[ry]+'" border=0>')
}
random_imglink()