function naviImg(name) {
	var tags = ["img","input"];
	for( var i=0, len=tags.length; i<len; i++ ) {
		var over = function() { this.src = this.src.replace('_off.', '_on.'); };
		var out	= function() { this.src = this.src.replace('_on.', '_off.'); };
		var el = document.getElementsByTagName(tags[i]);
		for (var j=0, len2=el.length; j<len2; j++) {
				
			if(el[j].name != "sub_8")
			{
				var attr = el[j].getAttribute('src');
				if(!el[j].src.match(/_off\./)&&attr) {
					var fileName = function() { this.src = this.src.replace('_off.', '_on.'); };
					var preImages = new Array();
					for (k=0; k<fileName.length; j++) {
						preImages[k] = new Image();
						preImages[k].src = fileName[j];
					}
				}			
				if (!el[j].src.match(/_off\./)&&attr) continue;
				if(el[j].name != name)
				{
					el[j].onmouseover = over;
					el[j].onmouseout	= out;
				}
				else
				{
					el[j].src = el[j].src.replace('_off.', '_on.');
				}
			}
		}
	}
}