模拟QQ信箱中收信人拦的删除操作 _Web前端

模拟QQ邮箱中收信人拦的删除操作
<!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>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<link href="css/mail.css" rel="stylesheet" type="text/css" />
<script src="js/jquery.js" type="text/javascript"></script>
<script type="text/javascript">
$(function(){
	$(".in_text").click(function(){
		var input = $("<input type='text' id='addr_text' onkeyup='IsNum(this)' readonly>");
		if($("#addr_text").length == 0)
		{input.appendTo($(this));}
		$("#addr_text").focus();
	});
	
	
})
function GetInfor(obj){
	var name = $(obj).text();
	var phone = $(obj).attr("name");
	var div = $("<div class='per_infor' onclick='changeClass(this);'><span class='per_name'>"+name+"</span><span class='phone'>"+phone+"</span>;</div>");
	var input = $("<input type='text' id='addr_text' onkeyup='IsNum(this)'>");
	if($("#addr_text").length == 0)
	{input.appendTo($(".in_text"));}
	$("#addr_text").before(div);
	$("#addr_text").focus();
	$(".per_infor").hover(function(){
		$(this).addClass("BgColor");
	},function(){$(this).removeClass("BgColor")});
	$("#addr_text").blur(function(){
		$(this).remove();						  
	});
	/*$(".per_infor").click(function(){
		$("#addr_text").remove();
		$(this).addClass("selected");
	})*/
}
function changeClass(domObj) {
  $(".per_infor").removeClass("selected");
  $("#addr_text").remove();
	$(domObj).addClass("selected");
}
function isKeyPressed(event)
{
  if (event.keyCode==37)
    {
		var dom1 = $("#addr_text").prev();
    	$("#addr_text").after(dom1);
    }
  else if(event.keyCode==39 )
    {
    	var dom1 = $("#addr_text").next();
    	$("#addr_text").before(dom1);
    }
	if(event.keyCode==8 )
	{
		var dom1 = $("#addr_text").prev();
		if($(".selected").length >0)
		{$(".selected").remove();}
		else
		{dom1.remove();}
	}
	else if(event.keyCode==46)
	{
		var dom1 = $("#addr_text").next();
    	dom1.remove();
	}
  }
</script>
<title>个人中心邮件</title>
</head>

<body onkeyup="isKeyPressed(event)">
<div class="in_text">
                        	
                        </div>
</body>
</html>