filemanage功能中用到的lib.js_javascript技巧

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 = "

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="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";
}