function MNGetE(strId){
    return document.getElementById(strId);
} 
function checkMapSearchFrm() {
    var query= MNGetE("txtInput").value;
    var strCityPage= MNGetE("city").value;
    if(query.replace(/(^\s*)|(\s*$)/g, "")=="" || query=="请输入关键字")
        query="";
    var baseUrl = 'http://ditu.live.com/?q='+encodeURI(strCityPage)+'&ss='+encodeURI(query)+'&FORM=MSNMINI';
    window.open(baseUrl);
}
function NavigateToLiveMap(){   
    var cityName = MNGetE("imgMap").attributes['cityname'].nodeValue;
    var targetUrl = "http://ditu.live.com/default.aspx?v=2&FORM=MSNMINI&q="+encodeURI(cityName);
    window.open(targetUrl);
}
function shareMap(){
    var browserName = navigator.appName;
    if ( browserName == "Microsoft Internet Explorer" ) {
        try{
            objMessengerActiveP4 = new ActiveXObject("MSNMessenger.P4QuickLaunch") 
            objMessengerActiveP4.LaunchApp('99995691', ''); }
        catch(e){
            window.open("http://im.live.cn");}
    }
}