function MenuOver( obj ){
	// document.images[ "mo" + i ].src = "image/menuobj_on.gif";
	obj.style.backgroundImage = "url(/image/menubk_on.gif)";
}

function MenuOut( obj ){
	// document.images[ "mo" + i ].src = "image/menuobj.gif";
	obj.style.backgroundImage = "url(/image/menubk.gif)";
}

// From All About Japan Sample code 
// http://allabout.co.jp/career/javascript/closeup/CU20050515A/
function getXMLHttpReq()
{
    //Win ie用
    if(window.ActiveXObject){
        try {
            //MSXML2以降用
            return new ActiveXObject("Msxml2.XMLHTTP"); //[1]'
        } catch (e) {
            try {
                //旧MSXML用
                return new ActiveXObject("Microsoft.XMLHTTP"); //[1]'
            } catch (e2) {
                return null
            }
         }
    } else if(window.XMLHttpRequest){
        //Win ie以外のXMLHttpRequestオブジェクト実装ブラウザ用
        return new XMLHttpRequest() //[1]';
    } else {
        return null;
    }
}