// JavaScript document

/*------------------------------------------
* rollover.js
* script of rollover moving
------------------------------------------*/

function imgRollover() {
	var imgNodeList = document.images;
	var node;
	for (var i = 0, len = imgNodeList.length; i < len;  i++){
		node = imgNodeList[i];
		node.originalSrc = node.src;
		node.rolloverSrc = node.originalSrc.replace(/(\.gif|\.jpg|\.png)/,'_on'+'$1');
		if(node.parentNode.tagName == 'A'){
			node.onmouseover = function(){
			this.src = this.rolloverSrc;
			};
			node.onmouseout = function(){
				this.src = this.originalSrc;
			}
		}
	}
}

if(navigator.userAgent.indexOf('MSIE') == -1){
	window.addEventListener('load',imgRollover,false);
}
else{
	window.attachEvent('onload',imgRollover);
}