<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title> new document </title>
<meta name="generator" content="editplus" />
<meta name="author" content="Gao YiXiang" />
<meta name="email" content="yixianggao@126.com" />
<meta name="keywords" content="javascript dhtml dom" />
<meta name="description" content="I love web development." />
</head>
<body>
<script type="text/javascript">
var count = 0;
function Add(num){
count += 1;
var addNewDiv = document.getElementById("addNewDiv");
var div = document.createElement("div");
var countTxt = document.createTextNode("文本框"+count);
var inputTxt = document.createElement("input");
var tipspan = document.createElement("span");
tipspan.id = "tip"+count;
tipspan.innerHTML = "这个元素已经存在";
tipspan.style.display = 'none';
inputTxt.type = "text";
inputTxt.name = "test";
inputTxt.id = count;
var btn = document.createElement("input");
btn.type = "button";
btn.value = "删除";
inputTxt.onblur = function(){
test(this.id,"tip"+this.id);
};
inputTxt.onfocus = function(){
document.getElementById("tip"+this.id).style.display = "none";
}
btn.onclick = function()
{
this.parentNode.parentNode.removeChild(this.parentNode);
var n = addNewDiv.getElementsByTagName("div");
for(var k=0; k<n.length; k++)
{
n[k].firstChild.nodeValue = "文本框"+(k+1);
}
count -= 1;
}
div.appendChild(countTxt);
div.appendChild(inputTxt);
div.appendChild(btn);
div.appendChild(tipspan);
addNewDiv.appendChild(div);
}
function test(id,tipdivid){
var test = new Array();
test = document.getElementsByName('test');
var testvalue = document.getElementById(id).value;
for(var i=0;i<test.length;i++){
if(test[i].id != id && test[i].value == testvalue && test[i].value !=''){
document.getElementById(tipdivid).style.display = "inline-block";
}
}
}
</script>
<div id="addNewDiv"> </div>
<input name="xiyaoname" value="Add" type="button" onclick="Add();" />
</body>
</html>
