Sapodo.Registration = {
	/**
	 * zooms the captcha
	 *
	 * @access public
	 * @return bool
	 */
	zoomCaptcha: function()
	{
		var zoomSteps = $A([1.0, 1.3, 1.6]);

		var element = $('captcha_image');

		if (Object.isUndefined(element._storeZoom))
		{
			element._storeZoom = zoomSteps.first();
			element._orgHeight = element.getHeight();
			element._orgWidth = element.getWidth();
		}

		var index = zoomSteps.indexOf(element._storeZoom);

		if (index + 1 == zoomSteps.length)
		{
			index = -1;
		}

		element._storeZoom = zoomSteps[++index];
		element.setStyle(
		{
			height:	(element._orgHeight * zoomSteps[index]) + 'px',
			width:	(element._orgWidth * zoomSteps[index]) + 'px'
		});

		return false;
	}
};