// preloading the images

function preloadImages() {

	PPics = new Array(9);
	for (i = 0; i < 9; i++) {
		PPics[i] = new Image();
	}

	PPics[0].src = "images/sta_flat1.jpg";
	PPics[1].src = "images/sta_flat2.jpg";
	PPics[2].src = "images/sta_flat3.jpg";
	PPics[3].src = "images/lux_king1.jpg";
	PPics[4].src = "images/lux_king2.jpg";
	PPics[5].src = "images/lux_king3.jpg";
	PPics[6].src = "images/sta_twobed1.jpg";
	PPics[7].src = "images/sta_twobed2.jpg";
	PPics[8].src = "images/sta_twobed3.jpg";
	
}

// function that replaces image
function replace(ImgToChange, ImgToShow){
ImgToChange.src=PPics[ImgToShow].src
}