var oSw_btn

function show_heat_img(oHeatsw, status){
if (status) {
    oHeatsw.src = "img/switch_off.png";
} else {
    oHeatsw.src = "img/switch_on.png";
}
}
function set_heat_switch(oHeatsw, status){
    
    if (oHeatsw.src.match('on')) {
        oHeatsw.src = "img/switch_off.png";
    } else {
        oHeatsw.src = "img/switch_on.png";
    }
}

var url = window.location.href
console.log("当前页面地址：" + url)
function get_status(root_url, oHeatsw){
    console.log("get_status :" + url)
    var url_staus = root_url + 'status';
    var request = new XMLHttpRequest();
    request.open('GET', url_staus);
    // 等待获取成功 onreadystatechange
    request.onreadystatechange = function(){
        if (request.readyState == 4 && request.status == 200){
            var res_status = JSON.parse(request.responseText)
            show_heat_img(oHeatsw, res_status['heat']['status']);
        }
    }
    request.send(null)
}


function my_function() {
    // window.alert('onload1');
    oLisw = document.getElementById("lisw");
    oHeatsw = document.getElementById("heatsw");
    get_status(url, oHeatsw)
    oHeatsw.onclick = function() {
    };
};
window.onload = my_function