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// formats XML into a multi-lined, indented format
// a good toString replacement for XML with ignoreWhite = true

XMLNode.prototype.format = function(indent){
	if (indent == undefined) indent = "";
	var str = "";
	var currNode = this.firstChild;
	do{

		if (currNode.hasChildNodes()){
			str += indent + currNode.cloneNode(0).toString().slice(0,-3) + ">\n";
			str += currNode.format(indent+"\t");
			str += indent + "</" + currNode.nodeName + ">\n";
		}else{
			str += indent + currNode.toString() + "\n";
		}
	}while (currNode = currNode.nextSibling);
	return str;
}