filemanage功能中用到的lib.js_javascript技巧

var indexnum= 10;
var count= 0;


function getmap(sFileName,sId){

var Uploadpic="../filetype/unknown.gif";
var sExten = sFileName.substring(sFileName.lastIndexOf(".")+1,sFileName.length);

var creatediv = document.createElement("div");
creatediv.setAttribute("id","myfile_"+sId);
creatediv.style.height = "17px";
creatediv.className = "file_div";

strHtml = ""
strHtml += ""
strHtml += "

" +sFileName +"

"

creatediv.innerHTML = strHtml ;
document.getElementById("myfilesarea").appendChild(creatediv);
document.getElementById(sId).style.display="none"

count ++;

checkexist(sExten,sId);

}

function checkexist(xExt,xId){
var picurl="../filetype/"+xExt+".gif";

var url = "checkexist.asp?pic="+xExt+"&pid=" +Math.random();

xmlHttp.open("GET", url, false);
xmlHttp.onreadystatechange = function sendinfo() {

if (xmlHttp.readyState == 4) {
if(xmlHttp.status == 200) {
var response = xmlHttp.responseText;
if (response =="yes"){
document.getElementById('fileext_'+xId).src=picurl;
}
}
}
}

xmlHttp.send(null);


}


function clearfiles(xId){
document.getElementById("myfile_"+xId).removeNode(true);
document.getElementById(xId).style.display="block";
count--;
}




function step1() {
document.getElementById("step01").innerHTML=" 第一步:更新文件及文件夹"
var url = "../listall.asp?pid="+Math.random();
xmlHttp.open("GET", url, true);
xmlHttp.onreadystatechange = step1ok;
xmlHttp.send(null);
}

function step1ok() {
if (xmlHttp.readyState == 4) {
document.getElementById("step01").innerHTML=" 第一步:更新文件及文件夹 "
document.getElementById("step02").innerHTML=" 第二步:删除无效的文件"
setTimeout("step2()",1000);
}
}

function step2() {
var url = "../delall.asp?pid="+Math.random();
xmlHttp.open("GET", url, true);
xmlHttp.onreadystatechange = step2ok;
xmlHttp.send(null);
}

function step2ok() {
if (xmlHttp.readyState == 4) {
document.getElementById("step02").innerHTML=" 第二步:删除无效的文件 "
document.getElementById("step03").innerHTML=" 第三步:设置FTP空间同步"
setTimeout("step3()",1000);
}
}

function step3() {
var url = "ftpformate.asp?pid="+Math.random();
xmlHttp.open("GET", url, true);
xmlHttp.onreadystatechange = step3ok;
xmlHttp.send(null);
}

function step3ok() {
if (xmlHttp.readyState == 4) {
document.getElementById("step03").innerHTML=" 第三步:设置FTP空间同步 "
setTimeout("step4()",1000);
}
}

function step4() {
document.getElementById("filemanage_update").style.display="none"
document.getElementById("filemanage_all").style.display="block";
showfiles();
}


var tagstate;
tagstate="no"

function showtag(){
if (tagstate=="no"){
document.getElementById("arror_01").src='images/arror2.gif'
document.getElementById("intro").style.display="block";
tagstate="yes";
}else{
document.getElementById("arror_01").src='images/arror.gif'
document.getElementById("intro").style.display="none";
tagstate="no";
}
}

function showtips(a){
document.getElementById("layer_tips").innerHTML=a
document.getElementById("layer_tips").style.display="block";
document.getElementById("layer_tips").style.pixelTop=window.event.y+18;
document.getElementById("layer_tips").style.pixelLeft=window.event.x+12;
}

function notips(){
document.getElementById("layer_tips").style.display="none";
}

function showfileintro(a,b,c,d,e,f){
var count
if(f==''){
count=0
}else{
count=f
}
var htmlstr="文件名:"+a+"
"+"文件所在目录:"+b+"
"+"文件大小:"+c+"
"+"上传时间:"+d+"
"+"文件简介:"+e+"
"+"文件下载次数:"+count+"
"
document.getElementById("layer_fileintro").innerHTML=htmlstr
document.getElementById("layer_fileintro").style.display="block";
document.getElementById("layer_fileintro").style.pixelTop=window.event.y+18;
document.getElementById("layer_fileintro").style.pixelLeft=window.event.x+12;
}

function nofileintro(){
document.getElementById("layer_fileintro").style.display="none";
}