日期:2014-05-16  浏览次数:20460 次

javascript实现选择框选项的移动



实现效果:

未移动前

移动后
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<!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>
<script type="text/javascript">


function move(strlist1,strlist2){
	var list1=document.getElementById(strlist1);
	var list2=document.getElementById(strlist2);
	if(list1.length!=0){
	var selected=0;
	for(i=0;i<list1.length;i++){
		//alert(list1.children[i]);
		if(list1.children[i].selected){
			selected=i;
			//alert(i);
			}	
		}
		//alert(selected);
		list2.appendChild(list1.children[selected]);
	}
	}
</script>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head>

<body>

<form method="get" action=""><br />
<div style="position:absolute; top: 16px; left: 12px;">
<select name="selectList1" id="selectList1" size="10">
<option value="1">11</option>
<option value="2">12</option>
<option value="3">13</option>
<option value="4">14</option>
<option value="5">15</option>
</select></div>
<div style="position:absolute; left: 81px; top: 59px;"><input type="button" value=">>" onclick="move('selectList1','selectList2')"/><br/>
<input type="button" value="<<" onclick="move('selectList2','selectList1')"/></div>
<div style="position:absolute; left: 131px; top: 18px;">
<select name="selectList2" id="selectList2" size="10">
<option value="1">21</option>
<option value="2">22</option>
<option value="3">23</option>
<option value="4">24</option>
<option value="5">25</option>
</select></div>
<br/>

</form>
</body>
</html>

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