uploadify.md

####使用uploadify实现上传文件时，发现只要一初始化就会向服务器发出一个网络请求，而这个请求是当前页面的地址，从互联网上找到解决方案：

#####原代码片段：

this.settings.upload_url = SWFUpload.completeURL(this.settings.upload_url);
this.settings.button_image_url = SWFUpload.completeURL(this.settings.button_image_url);

#####替换后的代码片段：

this.settings.upload_url = SWFUpload.completeURL(this.settings.upload_url);
this.settings.button_image_url = this.settings.button_image_url ? 
        SWFUpload.completeURL(this.settings.button_image_url) : 
        this.settings.button_image_url;