function init() {
var introDiv = document.getElementById("intro")

var randomNumber=Math.floor(Math.random()*2)

if (randomNumber == 0) {
	introDiv.style.background = "#c6e59b url(css/images/index/intro-div-bg.jpg) no-repeat top right";
}

else if (randomNumber == 1) {
	introDiv.style.background = "#c6e59b url(css/images/index/intro-div-bg2.jpg) no-repeat top right";
}

}

window.onload = init;