js文件有关问题 _JavaScript

js文件问题
<script type="text/javascript" src="http://int.dpool.sina.com.cn/iplookup/iplookup.php? format=js"></script>
<script type="text/javascript">var province = remote_ip_info.province;if(province != '北京' && province != '广东' && province != '上海' && province != '成都' && province != '深圳' ) {window.location = "http://www.baidu.com";}</script>

这段代码是根据不同城市ip 调整到指定页面，

如何把这段js 放在一个js文件里，，

我建立一个js文件
document.write("<script type="text\/javascript" src="http:\/\/int.dpool.sina.com.cn\/iplookup\/iplookup.php? format=js"><\/script>");

var province = remote_ip_info.province;
if(province != '北京' && province != '广东' && province != '上海' && province != '成都' && province != '深圳' )
{
window.location = "http://www.baidu.com";
}

这样写没效果，

------解决方案--------------------
页面调用该文件了？
------解决方案--------------------
楼主
document.write('<script type="text\/javascript" src="http:\/\/int.dpool.sina.com.cn\/iplookup\/iplookup.php? format=js"><\/script>');

这样写，没有阻塞页面的加载，只是发送了一个请求，接着马上就用到了
province = remote_ip_info.province，
但是这时外链的js内容还没加载完毕，所以就没效果了。

可以把wirte的内容
换成普通阻塞加载
<script src="">。。。</script>

或者
参考 1楼
http://topic.csdn.net/u/20120530/19/d8c76d3c-f825-4c41-987c-bcd8da7e2be9.html
------解决方案--------------------
http://www.chhblog.com/Web/ArticleView.aspx?ArticleID=192
参考
------解决方案--------------------

HTML code


<!DOCTYPE HTML>
<html>
    <head>
        <meta charset="gb2312" />
        <title></title>        
    </head>
    <body>



        <script>
            ;(function(w){
                var loader = function(){
                    var dc = document;
                    function createScript(url, callback){
                        var urls = url,
                            scripts = [],
                            completed = 0;
                        for( var i = 0, len = urls.length; i < len; i++ ){
                            scripts[i] = dc.createElement('script');
                            scripts[i].src = urls[i];
                            dc.getElementsByTagName('head')[0].appendChild(scripts[i]);
                            if( scripts[i].readyState ){ //ie
                                scripts[i].onreadystatechange = function(){
                                    if( this.readyState == 'complete' || this.readyState == 'loaded' ){
                                        this.onreadystatechange = null; //确保事件不被处理2次
                                        completed++;
                                        completed >= urls.length ? callback() : '';
                                    }
                                }
                            }else{ //not ie
                                scripts[i].onload = function(){
                                    completed++;
                                    completed >= urls.length ? callback() : '';
                                }                            
                            }
                        }
                    }
                    function createLink(url, callback){
                        var urls = url,
                            links = [];
                        for( var i = 0, len = urls.length; i < len; i++ ){
                            links[i] = dc.createElement('link');
                            links[i].rel = 'stylesheet';
                            links[i].href = urls[i];
                            dc.getElementsByTagName('head')[0].appendChild(links[i]);    
                        }
                        callback();
                    }
                    return {
                        load: function(option, callback){
                            var _type = option.type || 'js',
                                _url = option.url,
                                _callback = callback || function(){};
                            switch( _type ){
                                case 'js':
                                case 'javascript':
                                    createScript(_url, _callback);
                                    break;
                                case 'css':
                                    createLink(_url, _callback);
                                    break;
                            }
                            return this;
                        }
                    }
                }();
                w.Cme ? '' : w.Cme = {};
                w.Cme.loader = loader;    
            })(window);
            Cme.loader.load({
                url: [
                    'http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=js'
                ]
            },function(){
                var province = remote_ip_info.province;
                alert(province)
                if(province != '北京' && province != '广东' && province != '上海' && province != '成都' && province != '深圳' )  
                {
                window.location = "http://www.baidu.com";
                }

            })
        </script>
    </body>
</html>