/**
 * jQuery-Plugin "clearField"
 *
 * @version: 1.0, 31.07.2009
 *
 * @author: Stijn Van Minnebruggen
 *          stijn@donotfold.be
 *          http://www.donotfold.be
 *
 * @example: $('selector').clearField();
 * @example: $('selector').clearField({ blurClass: 'myBlurredClass', activeClass: 'myActiveClass' });
 *
 */

(function($) {
    jQuery.fn.clearField = function(settings) {
        /**
	 * Settings
	 *
	 */
        settings = jQuery.extend({
            blurClass: 'clearFieldBlurred',
            activeClass: 'clearFieldActive'
        }, settings);
        /**
	 * loop each element
	 *
	 */
        jQuery(this).each(function() {
            /**
		 * Set element
		 *
		 */
            var el = jQuery(this);
            /**
		 * Add rel attribute
		 *
		 */
            if(el.attr('rel') == undefined) {
                el.attr('rel', el.val()).addClass(settings.blurClass);
            }
            /**
		 * Set focus action
		 *
		 */
            el.focus(function() {
                if(el.val() == el.attr('rel')) {
                    el.val('').removeClass(settings.blurClass).addClass(settings.activeClass);
                }
            });
            /**
		 * Set blur action
		 *
		 */
            el.blur(function() {
                if(el.val() == '') {
                    el.val(el.attr('rel')).removeClass(settings.activeClass).addClass(settings.blurClass);
                }
            });
        });
        return jQuery;
    };
})(jQuery);