Java

tannghia wrote:

But I cann't read information from "WebConfig" because I don't know it's directory.

function getParent(el, parentTagName){
	var obj = el;
	while(obj.tagName !== parentTagName){
		obj = obj.parentNode;
	}
	
	alert(obj.id);
}

<div id="0">
<form>
<input type="submit" target="pr" value="Go" onclick="getParent(this, 'DIV')">
</form>
</div>

<div id="0">
<form>
<input type="submit" target="pr" value="Go"  onclick="getParent(this, 0)">
</form>
</div>