<div id="fa">
<div id="child1">c1</div>
<div id="child2">c2</div>
<div id="child3" onclick="alert(this.nextSibling.innerHTML)">c3</div>
<div id="child4">c4</div>
<div id="child5">c5</div>
</div>
<div id="child1">c1</div>
<div id="child2">c2</div>
<div id="child3" onclick="alert(this.nextSibling.innerHTML)">c3</div>
<div id="child4">c4</div>
<div id="child5">c5</div>
</div>
<head>
<title>Untitled</title>
<script language="JavaScript">
function show(obj){
try{
alert(obj.nextSibling.innerHTML);
}catch(e){}
}
</script>
</head><body><div id="fa">
<div id="child1" onclick="show(this)">c1</div>
<div id="child2" onclick="show(this)">c2</div>
<div id="child3" onclick="show(this)">c3</div>
<div id="child4" onclick="show(this)">c4</div>
<div id="child5" onclick="show(this)">c5</div>
</div>
</body>
</html>