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jQuery(function(){
	if (!document.getElementById) return
	var nvPreLoad = new Array();
	var sTempSrc;
	var nvImages = document.getElementsByTagName('img');
	var bodyId = document.body.id;
	var bodyClass = document.body.className;
	var stayIdNum;
	var stayNum;
	switch(bodyId){
		case "timetables":
			stayNum = 1;
		break;
		case "pass":
			stayNum = 2;
		break;
		case "routemaps":
			stayNum = 3;
		break;
		case "destinations":
			stayNum = 4;
		break;
		case "customer":
			stayNum = 5;
		break;
		case "investor":
			stayNum = 6;
		break;
		case "about":
			stayNum = 7;
		break;
	}
	var gNaviStaySrc = "menu0" + stayNum + ".gif";
	for (var i = 0; i < nvImages.length; i++) {	
        if( i >= 2 ) break;
			if (nvImages[i].className == 'manuover'){
				var src = nvImages[i].getAttribute('src');
				var ftype = src.substring(src.lastIndexOf('.'), src.length);
				srcStr = src.substring(src.lastIndexOf('/') + 1, src.length);
				if(srcStr == gNaviStaySrc) {
					var hsrc = src.replace(ftype, '_on' + ftype);
					nvImages[i].setAttribute('hsrc', hsrc);
					nvImages[i].setAttribute('src', nvImages[i].getAttribute('hsrc'));
				} else {
					var hsrc = src.replace(ftype, '_on' + ftype);
					nvImages[i].setAttribute('hsrc', hsrc);
					nvPreLoad[i] = new Image();
					nvPreLoad[i].src = hsrc;
					nvImages[i].onmouseover = function() {
						sTempSrc = this.getAttribute('src');
						this.setAttribute('src', this.getAttribute('hsrc'));
					}
					nvImages[i].onmouseout = function() {
						if (!sTempSrc) sTempSrc = this.getAttribute('src').replace('_on' + ftype, ftype);
						this.setAttribute('src', sTempSrc);				
					}
				}
			}
	}
});