 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 
<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=gb2312"> 
<meta name="Author" content=""> 
<title>內(nèi)容篩選</title> 

<script type='text/javascript'> 

function getPositions() { 
var el = document.getElementById('shaixuan'); 
var startPosition = 0;//所選文本的開始位置 
var endPosition = 0;//所選文本的結(jié)束位置 
if(document.selection) { 
//IE 
var range = document.selection.createRange();//創(chuàng)建范圍對象 
var drange = range.duplicate();//克隆對象 

drange.moveToElementText(el); //復(fù)制范圍 
drange.setEndPoint('EndToEnd', range); 

startPosition = drange.text.length - range.text.length; 
endPosition = startPosition + range.text.length; 
} 
else if(window.getSelection) { 
//Firefox,Chrome,Safari etc 
startPosition = el.selectionStart; 
endPosition = el.selectionEnd; 
} 
return { 
"start":startPosition, 
"end":endPosition 
} 
} 

//@todo 獲取textarea中，選中的文本 
function getshaixuan() { 
var position = getPositions(); 
var start = position.start;//開始位置 
var end = position.end;//結(jié)束位置 
var text = document.getElementById('shaixuan').value; 
var selectText = text.substr(start, (end - start));//textarea中，選中的文本 
//alert(selectText); 
var textBox1 = document.getElementById("canjia"); 
textBox1.innerText=textBox1.value+selectText; 
} 
//]]> 
</script> 

<title>元素的復(fù)制</title> 
<style type="text/css"> 
<!-- 
body{ font-size:18px} 
p{border-style:none} 
.p1{ background-color:#FFFFFF;margin-top:60px;margin-bottom:3px;margin-left:200px;} 
.p2{ background-color:#FFFFFF;margin-top:2px;margin-bottom:3px;margin-left:150px;} 
.p3{ background-color:#FFFFFF;margin-top:1px;margin-bottom:3px;position:absolute;left:550px;top:60px} 
.p4{ background-color:#FFFFFF;margin-top:1px;margin-bottom:3px;position:absolute;left:500px;top:85px} 
.p5{ background-color:#FFFFFF;margin-top:1px;margin-bottom:3px;position:absolute;left:380px;top:190px} 
--> 
</style> 
</head> 

<body> 
<p class="p1">篩選名單</p> 
<textarea id="shaixuan" name="check" cols="23" rows="15" class="p2"></textarea> 
<div class="p3">參加名單</div> 
<textarea id="canjia" name="canjia" cols="23" rows="15" class="p4"></textarea> 
<input type="button" value="內(nèi)容復(fù)制" class="p5" onclick="getshaixuan();"> 
<!--</textarea> <button onclick="getshaixuan()">獲取內(nèi)容</button>--> 

</body> 
</html> 