function getYangShanWeather()
{

}

function getAirportWeather()
{
	alert("sss");
	var getAirport=getHTML("http://3g.sina.com.cn/prog/wapsite/weather_new/airport_cities.php?city=%C9%CF%BA%A3&cf=c&vt=4");
	alert(getAirport.length);
	
}

function getPudongWeather()
{

}

function getHTML(url)
{
   var xmlHttp;
   if (window.ActiveXObject) {
        xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
    } 
   else if (window.XMLHttpRequest) {
       xmlHttp = new XMLHttpRequest();    }    
    xmlHttp.open("get", url); 
    xmlHttp.send();
    return xmlHttp.responseText;
}