Jquery 写的 弹出层插件,如何控制弹出位置

<!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>点击input输入框弹出选择层(基于jquery) - 懒人建站</title>
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 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<style type="text/css"> 
body{font-size:12px;}
.selectItemcont{padding:8px;}
#selectItem{background:#FFF;position:absolute;top:0px;left:center;border:1px solid #000;overflow:hidden;width:240px;z-index:1000;}
#selectItem2{background:#FFF;position:absolute;top:0px;left:center;border:1px solid #000;overflow:hidden;width:240px;z-index:1000;}
.selectItemtit{line-height:20px;height:20px;margin:1px;padding-left:12px;}
.bgc_ccc{background:#E88E22;}
.selectItemleft{float:left;margin:0px;padding:0px;font-size:12px;font-weight:bold;color:#fff;}
.selectItemright{float:right;cursor:pointer;color:#fff;}
.selectItemcls{clear:both;font-size:0px;height:0px;overflow:hidden;}
.selectItemhidden{display:none;}
</style> 
<script src="jquery-1.3.1.js" type="text/javascript"></script>
<script type="text/javascript" src="jquery.bgiframe.js"></script>
<script>
 
jQuery.fn.selectCity = function(targetId) {
	var _seft = this;
	var targetId = $(targetId);
 
	this.click(function(){
		var A_top = $(this).offset().top + $(this).outerHeight(true);  //  1
		var A_left =  $(this).offset().left;
		targetId.bgiframe();
		targetId.show().css({"position":"absolute","top":A_top+"px" ,"left":A_left+"px"});
	});
 
	targetId.find("#selectItemClose").click(function(){
		targetId.hide();
	});
 
	targetId.find("#selectSub :checkbox").click(function(){		
		targetId.find(":checkbox").attr("checked",false);
		$(this).attr("checked",true);	
		_seft.val( $(this).val() );
		targetId.hide();
	});
 
	$(document).click(function(event){
		if(event.target.id!=_seft.selector.substring(1)){
			targetId.hide();	
		}
	});
 
	targetId.click(function(e){
		e.stopPropagation(); //  2
	});
 
    return this;
}
 
$(function(){
	//test1:
	$("#address").selectCity("#selectItem");
	//test2:
	$("#address2").selectCity("#selectItem2");
});
 </script>
</head>
<body>
<br/>
此弹出框特点:<br/>
1,弹出层出现在 文本框 下面.<br/>
2,点击弹出层内部 不关闭层,点击外面关闭弹出层.<br/>
3,ie6依然能遮住下拉框.<br/><br/>
 
地址选择一:<br/>
<input type="text" name="address" id="address" >
<br/><br/>
地址选择二:<br/>
<input type="text" name="address2" id="address2" size="20" >
 
 
<br/><br/><br/>
 
<div id="selectItem" class="selectItemhidden"> 
	<div id="selectItemAd" class="selectItemtit bgc_ccc"> 
		<h2 id="selectItemTitle" class="selectItemleft">请选择城市</h2> 
		<div id="selectItemClose" class="selectItemright">关闭</div>
	</div> 
	<div id="selectItemCount" class="selectItemcont"> 
		<div id="selectSub"> 
			<input type="checkbox" name="cr01"  id="cr01" value="北京1"/><label for="cr01">北京1</label>
			<input type="checkbox" name="cr02"  id="cr02" value="北京2"/><label for="cr02">北京2</label>
			<input type="checkbox" name="cr03"  id="cr03" value="北京3"/><label for="cr03">北京3</label>
			<input type="checkbox" name="cr09"  id="cr09" value="北京4"/><label for="cr09">北京4</label>
		</div> 
	</div> 
</div> 
 
 
<div id="selectItem2" class="selectItemhidden"> 
	<div id="selectItemAd" class="selectItemtit bgc_ccc"> 
		<h2 id="selectItemTitle" class="selectItemleft">请选择城市</h2> 
		<div id="selectItemClose" class="selectItemright">关闭</div>
	</div> 
	<div id="selectItemCount" class="selectItemcont"> 
		<div id="selectSub"> 
			<input type="checkbox" name="cr04"  id="cr04" value="北京1"/><label for="cr04">北京1</label>
			<input type="checkbox" name="cr05"  id="cr05" value="北京2"/><label for="cr05">北京2</label>
			<input type="checkbox" name="cr06"  id="cr06" value="北京3"/><label for="cr06">北京3</label>
			<input type="checkbox" name="cr07"  id="cr07" value="北京4"/><label for="cr07">北京4</label>
		</div> 
	</div> 
</div> 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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posted on 2014-01-23 15:03  西湖浪子  阅读(196)  评论(0)    收藏  举报