/** This function constructs a two new images
  * out	is the path to the image file that will be the mouse over image
  * over is the path to the image file that will be the mouse over image
  */
function rollImage(out, over) {

	if (document.images) {
		//create a new image and give it the value specified
		this.out = new Image();
		this.out.src = out;
		//create a new mouse over image and give file name passed
		this.over = new Image();
		this.over.src = over;
	}
}