/**
 * Node_Builder.js
 * 
 * @author Kevin Lindsey
 * @version 1.3
 * @copyright 2000-2002, Kevin Lindsey
 * @license http://www.kevlindev.com/license.txt
 */

/*
 * class variables
 */
Node_Builder.VERSION = 1.3;

/*
 * Constructors
 */

/**
 * Node_Builder
 * 
 * @param {String} type
 * @param {Object} attributes
 * @param {String} text
 */
function Node_Builder(type, attributes, text) {
	this.type       = type;
	this.attributes = attributes;
	this.text       = text;

	this.node  = null;
	this.tnode = null;
}

/**
 * appendTo
 * 
 * @param {SVGElement} parent
 */
Node_Builder.prototype.appendTo = function(parent) {
	var SVGDoc = parent.ownerDocument;
	var node   = SVGDoc.createElementNS(
        "http://www.w3.org/2000/svg",
        this.type
    );

	this.node = node;

	for (var a in this.attributes) {
        var ns = null;
        
        // WARNING: this test for the xlink namespace is a hack.
        if ( a.match(/^xlink:/) )
            ns = "http://www.w3.org/1999/xlink";

		node.setAttributeNS(ns, a, this.attributes[a]);
    }

	if (this.text) {
		var tnode = SVGDoc.createTextNode(this.text);

		node.appendChild(tnode);
		this.tnode = tnode;
	}

	if (parent) parent.appendChild(this.node);
};

/**
 * remove
 */
Node_Builder.prototype.remove = function() {
	if (this.node) this.node.parentNode.removeChild(this.node);

	this.type       = "";
	this.attributes = null;
    this.text       = null;
	this.node       = null;
	this.tnode      = null;
};