js 上传和下载本地文件

function writeFile(path,data){
	var fso, f, s ; 
	 fso = new ActiveXObject("Scripting.FileSystemObject");    
	 if(isFile(path)){
		fso.DeleteFile(path);   
	}
	 f = fso.OpenTextFile(path,8,true); 
	f.WriteLine(data);   
	f.Close(); 	
		
}
function isFile(path){
	var fso = new ActiveXObject("Scripting.FileSystemObject");
	var f = fso.FileExists(path);
	return f;
}
function synchronyInfo(){
	var httpRequest = new HttpRequest("../offRegionPolice/synchronyInfo.action", "post", {
		onRequestSuccess : function(responseText) {
		if("error" == responseText){
			alert("同步出错，请重试");
		}else{
			 var tmsTaskAppInfoJsons=responseText.split("==");
			writeFile("D:\\autoData.json",tmsTaskAppInfoJsons[0]);
			writeFile("D:\\data.json",tmsTaskAppInfoJsons[1]);
			alert("同步成功！");
		}
		}
	});
	httpRequest.sendRequest(false);
}
//同步销单信息
function synchronyFinishInfo(){
		var data=readFile("D:\\finishData.json")
		var httpRequest = new HttpRequest("../offRegionPolice/synchronyFinishInfo.action", "post", {
			onRequestSuccess : function(responseText) {
			    if("" == responseText){
			    	alert("上传数据成功！");
			    	search_list_page();
			    }else{
				alert(responseText);
			    }
			}
		});
		httpRequest.addParameter("parameter['finishData']",data);
		httpRequest.sendRequest(false);
}
function readFile(path) {
	var data = new Array();
	var fso = new ActiveXObject("Scripting.FileSystemObject");
	var f = fso.OpenTextFile(path, 1);
	while (!f.AtEndOfStream) {
		var line = f.ReadLine();
		data.push(line.split("\t"));
	}
	f.Close();
	return data;
}