// ----------------------------------------------
// File:		XMLUtils.js
// Author:		Nathan Derksen
// Description:	Class to handle extracting search info from search pre-check
// Example:
// var isEmpty = SearchFactory.getIsEmptyFromXML(result.documentElement);
// ----------------------------------------------

// ----------------------------------------------
// Function:	XMLUtils()
// Author:		Nathan Derksen
// Description:	Base class
// Inputs:		<None>
// Returns:		<Nothing>
// ----------------------------------------------
function XMLUtils()
{
}

// ----------------------------------------------
// ----------------------------------------------
XMLUtils.getNode = function(nodeHandle, nodeName)
{
	try
	{
		if (nodeHandle)
		{
			for (var i = 0; i < nodeHandle.childNodes.length; i++)
			{
				if (nodeHandle.childNodes[i].nodeName.toLowerCase() == nodeName.toLowerCase())
				{
					return nodeHandle.childNodes[i];
				}
			}
		}
	}
	catch (err)
	{
		Debug.error(err);
	}
	return null;
};

// ----------------------------------------------
// ----------------------------------------------
XMLUtils.getNodeValue = function(nodeHandle, nodeName)
{
	var node = this.getNode(nodeHandle, nodeName);
	if (node != null)
	{
		if (node.firstChild != null)
		{
			if (node.firstChild.textContent)
			{
				// Firefox
				return node.firstChild.textContent;
			}
			else if (node.firstChild.nodeValue)
			{
				// Safari
				return node.firstChild.nodeValue;
			}
			else if (node.firstChild.text)
			{
				// IE
				return node.firstChild.text;
			}
		}
	}
	return "";
};

// ----------------------------------------------
// ----------------------------------------------
XMLUtils.getValue = function(node)
{
	if (node != null)
	{
		if (node.firstChild != null)
		{
			if (node.firstChild.textContent)
			{
				// Firefox
				return node.firstChild.textContent;
			}
			else if (node.firstChild.nodeValue)
			{
				// Safari
				return node.firstChild.nodeValue;
			}
			else if (node.firstChild.text)
			{
				// IE
				return node.firstChild.text;
			}
		}
	}
	return "";
}

// ----------------------------------------------
// ----------------------------------------------
XMLUtils.getNodeAttribute = function(nodeHandle, nodeAttribute)
{
	if (nodeHandle != null)
	{
		if (nodeHandle.attributes)
		{
			if (nodeHandle.attributes.getNamedItem(nodeAttribute))
			{
				return nodeHandle.attributes.getNamedItem(nodeAttribute).value;
			}
		}
	}
	return "";
};