//arguments[0] -- upper limit of random number needed (integer between 0 and this number will be generated)  
//arguments[1] -- image folder name
//arguments[2] -- position in DOM images array where random image will be placed  

function showRandImage(){
	var numImages = arguments[0];
	var imgSrcPath = arguments[1];
	var domPos = arguments[2]; //Zero-based, this is the max index that can be used in images collection.
    flip = Math.round(Math.random()*numImages);
    //flip = rand(numImages);
	document.images[domPos].src = "images/"+imgSrcPath+"/"+flip+".jpg";
}// function showRandImage;

//alternate technique
today=new Date();
seed=today.getTime();

function rnd() {
        seed = (seed*9301+49297) % 233280;
        return seed/(233280.0);
};

function rand(number) {
        //return Math.ceil(rnd()*number);
        return Math.round(rnd()*number);
};