动态添加删除文本框 

<!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>

 

posted @ 2012-06-25 14:16  绒花雪冷  阅读(808)  评论(0)    收藏  举报