//获取当前的路径 
//如果本文件路径为http://localhost:6558/index.html 
//返回值为http://localhost:6558
function abspath() {
    var abspath = unescape(window.location.href);
    // Remove query String
    var index = abspath.indexOf("?");
    if (index > 0) abspath = abspath.substr(0, index - 1);

    index = abspath.lastIndexOf("/");
    var index2 = abspath.lastIndexOf("\\");

    index = (index > index2) ? index : index2;
    if (index <= 0) return abspath;

    abspath = abspath.substring(0, index);

    if (abspath.substring(0, 1) === "/") abspath = abspath.slice(1);

    var re = /file:\/\/\//gi;
    if (abspath.match(re) !== null) abspath = abspath.replace(re, ""); // if this is indeed a local file, we strip the "file://" prefix from it.

    return (abspath);
}


//SGWorld701对象构造函数
function CreateSGObj() {
    try {
        var obj = document.getElementById("SGWorld");
        if (obj === null) {
            obj = document.createElement('object');
            obj.setAttribute("name", "SGWorld");
            obj.setAttribute("id", "SGWorld");
            obj.style.height = "1px";
            obj.style.width = "1px";
            //定义TerraExplorer对象
            obj.setAttribute("classid", "CLSID:3A4F919C-65A8-11D5-85C1-0001023952C1");
            document.body.appendChild(obj);
        }
        console.log(obj);
        return obj;
    }
    catch (e) { alert("CreateSGWorld " + e); }
}

// 获取网页链接中数据，findParam是要查找的对象，defaultValue是默认值
function getParamValue(findParam, defaultValue) {
    var arr = document.location.href.split("?");
    if (arr.length <= 1) return defaultValue;
    arr = arr[1].split("&");
    for (var i = 0; i < arr.length; i++) {
        if (arr[i].indexOf(findParam) === 0 && arr[i].indexOf("=") === findParam.length) {
            arr = arr[i].split("=");
            return arr[1];
        }
    }

    return defaultValue;
}