/**
	 * AS3 Utilities by skyboy. April 10th 2010.
	 * Visit http://github.com/skyboy for documentation, updates
	 * and more free code.
	 *
	 *
	 * Copyright (c) 2010, skyboy
	 *    All rights reserved.
	 *
	 * Permission is hereby granted, free of charge, to any person
	 * obtaining a copy of this software and associated documentation
	 * files (the "Software"), to deal in the Software with
	 * restriction, with limitation the rights to use, copy, modify,
	 * merge, publish, distribute, sublicense copies of the Software,
	 * and to permit persons to whom the Software is furnished to do so,
	 * subject to the following conditions and limitations:
	 *
	 * ^ Attribution will be given to:
	 *  	skyboy, http://www.kongregate.com/accounts/skyboy;
	 *  	http://github.com/skyboy; http://skybov.deviantart.com
	 *
	 * ^ Redistributions of source code must retain the above copyright notice,
	 * this list of conditions and the following disclaimer in all copies or
	 * substantial portions of the Software.
	 *
	 * ^ Redistributions of modified source code must be marked as such, with
	 * the modifications marked and ducumented and the modifer's name clearly
	 * listed as having modified the source code.
	 *
	 * ^ Redistributions of source code may not add to, subtract from, or in
	 * any other way modify the above copyright notice, this list of conditions,
	 * or the following disclaimer for any reason.
	 *
	 * ^ Redistributions in binary form must reproduce the above copyright
	 * notice, this list of conditions and the following disclaimer in the
	 * documentation and/or other materials provided with the distribution.
	 *
	 * THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
	 * IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
	 * NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
	 * PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
	 * OR COPYRIGHT HOLDERS OR CONTRIBUTORS  BE LIABLE FOR ANY CLAIM, DIRECT,
	 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
	 * OR OTHER LIABILITY,(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
	 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
	 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
	 * WHETHER AN ACTION OF IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
	 * NEGLIGENCE OR OTHERWISE) ARISING FROM, OUT OF, IN CONNECTION OR
	 * IN ANY OTHER WAY OUT OF THE USE OF OR OTHER DEALINGS WITH THIS
	 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	 */