var image = new Object();


function preload() {
	setPreloadImage("/images/navi_company1.jpg");
	setPreloadImage("/images/navi_products1.jpg");
	setPreloadImage("/images/navi_recruit1.jpg");
	setPreloadImage("/images/navi_contact1.jpg");

}


function setPreloadImage(imgName){
	image[imgName] = new Image();
	image[imgName].src = imgName;
}


function ImgChange(imgNum,imgSrc) {
	document.images[imgNum].src = imgSrc;
}