var preloadFlag = true;

function randImage(){
	totalImages = 8;
	usedNumbers = new Array();
	var numbers = 0;
	while (numbers < 4) {
		var randomNumber = Math.floor(Math.random()*totalImages);
		randomNumber++;
		var test = 0;
		for (n = 0; n <= (usedNumbers.length - 1); n++) {
			if (usedNumbers[n] == randomNumber){
				test++;
			}
		}
		if (test == 0){
			numbers++;
			usedNumbers[(numbers - 1)] = randomNumber;
		}
	}

	document.image1.src = "/images/houses/house" + usedNumbers[0] + ".jpg";
	document.image2.src = "/images/houses/house" + usedNumbers[1] + ".jpg";
	document.image3.src = "/images/houses/house" + usedNumbers[2] + ".jpg";
	document.image4.src = "/images/houses/house" + usedNumbers[3] + ".jpg";
}