var image = new Object();


function preload() {
	setPreloadImage("/images/navi_company1.jpg");
	setPreloadImage("/images/navi_products1.jpg");
	setPreloadImage("/images/navi_info1.jpg");
	setPreloadImage("/images/navi_recruit1.jpg");
	setPreloadImage("/images/navi_contact1.jpg");
	setPreloadImage("/images/navi_link1.jpg");


}


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


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

/************************************************
	sidemenu
************************************************/

function SideChildOver()
{
	if(document.getElementsByTagName)
	{
		var uls = document.getElementsByTagName("a");
		for(var i=0;i<uls.length;i++)
		{
			if((uls[i].getAttribute("class")||uls[i].getAttribute("className")) == 'side_child')
			{
				uls[i].onmouseover = function()
				{
					this.parentNode.style.backgroundColor = "#d5d5d5";
				}

				uls[i].onmouseout = function()
				{
					if(this.parentNode.getAttribute('id') != 's_position')
					{
						this.parentNode.style.backgroundColor = "#f7f7f7";
					}
				}

			}
		}
	}
}