photoArray=new Array("port0", "child0", "wed0", "fine0");

function randomPhoto() {
	changePhoto(photoArray[Math.floor(Math.random()*photoArray.length)]);
}

function changePhoto(pName) {
	obj=document.getElementById("photo200");
	obj.src="./images/home_200_"+pName+".jpg";
}

function preloadImages() {
	for (i=0; i<photoArray.length; i++)
		newImage("./images/home_200_"+photoArray[i]+".jpg");
}

function newImage(arg) { 
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}