var how_many = 5;
var maxm1 = how_many - 1;
//var now = new Date()
//var sec = now.getSeconds()
//var pick = sec % how_many;
//pick +=1;
pick = Math.round(Math.random()*maxm1) + 1;


if (pick==1) {
document.write("<img src=\"images/header_feature1.jpg\" width=\"301\" height=\"298\" border=\"0\" />")

}

if (pick==2) {
document.write("<img src=\"images/header_feature2.jpg\" width=\"301\" height=\"298\" border=\"0\" />")

}

if (pick==3) {
document.write("<img src=\"images/header_feature3.jpg\" width=\"301\" height=\"298\" border=\"0\" />")

}

if (pick==4) {
document.write("<img src=\"images/header_feature4.jpg\" width=\"301\" height=\"298\" border=\"0\" />")

}

if (pick==5) {
document.write("<img src=\"images/header_feature5.jpg\" width=\"301\" height=\"298\" border=\"0\" />")

}