/*
 * In-Field Label jQuery Plugin
 * http://fuelyourcoding.com/scripts/infield.html
 *
 * Copyright (c) 2009 Doug Neiner
 * Dual licensed under the MIT and GPL licenses.
 * Uses the same license as jQuery, see:
 * http://docs.jquery.com/License
 *
 * @version 0.1
 */
// (function($){$.InFieldLabels=function(label,field,options){var base=this;base.$label=$(label);base.$field=$(field);base.$label.data("InFieldLabels",base);base.showing=true;base.init=function(){base.options=$.extend({},$.InFieldLabels.defaultOptions,options);base.$label.css('position','absolute');var fieldPosition=base.$field.position();base.$label.css({'left':fieldPosition.left,'top':fieldPosition.top}).addClass(base.options.labelClass);if(base.$field.val()!=""){base.$label.hide();base.showing=false;};base.$field.focus(function(){base.fadeOnFocus();}).blur(function(){base.checkForEmpty(true);}).bind('keydown.infieldlabel',function(e){base.hideOnChange(e);}).change(function(e){base.checkForEmpty();}).bind('onPropertyChange',function(){base.checkForEmpty();});};base.fadeOnFocus=function(){if(base.showing){base.setOpacity(base.options.fadeOpacity);};};base.setOpacity=function(opacity){base.$label.stop().animate({opacity:opacity},base.options.fadeDuration);base.showing=(opacity>0.0);};base.checkForEmpty=function(blur){if(base.$field.val()==""){base.prepForShow();base.setOpacity(blur?1.0:base.options.fadeOpacity);}else{base.setOpacity(0.0);};};base.prepForShow=function(e){if(!base.showing){base.$label.css({opacity:0.0}).show();base.$field.bind('keydown.infieldlabel',function(e){base.hideOnChange(e);});};};base.hideOnChange=function(e){if((e.keyCode==16)||(e.keyCode==9))return;if(base.showing){base.$label.hide();base.showing=false;};base.$field.unbind('keydown.infieldlabel');};base.init();};$.InFieldLabels.defaultOptions={fadeOpacity:0.5,fadeDuration:300,labelClass:'infield'};$.fn.inFieldLabels=function(options){return this.each(function(){var for_attr=$(this).attr('for');if(!for_attr)return;var $field=$("input#"+for_attr+"[type='text'],"+"input#"+for_attr+"[type='password'],"+"textarea#"+for_attr);if($field.length==0)return;(new $.InFieldLabels(this,$field[0],options));});};})(jQuery);


/*
 * In-Field Label jQuery Plugin
 * http://fuelyourcoding.com/scripts/infield.html
 *
 * Copyright (c) 2009 Doug Neiner
 * Dual licensed under the MIT and GPL licenses.
 * Uses the same license as jQuery, see:
 * http://docs.jquery.com/License
 *
 * @version 0.1
 */
(function($){

    $.InFieldLabels = function(label,field, options){
        // To avoid scope issues, use 'base' instead of 'this'
        // to reference this class from internal events and functions.
        var base = this;
        
        // Access to jQuery and DOM versions of each element
        base.$label = $(label);
        //base.label = label;

 		base.$field = $(field);
		//base.field = field;
        
		base.$label.data("InFieldLabels", base);
		base.showing = true;
        
        base.init = function(){
			// Merge supplied options with default options
            base.options = $.extend({},$.InFieldLabels.defaultOptions, options);
            
            base.$label.css('position','absolute');
            var fieldPosition = base.$field.position();
            base.$label.css({
                // 'left' : fieldPosition.left,
                // 'top' : fieldPosition.top
            }).addClass(base.options.labelClass);

			// Check if the field is already filled in
			if(base.$field.val() != ""){
				base.$label.hide();
				base.showing = false;
			};

			base.$field.focus(function(){
				base.fadeOnFocus();
			}).blur(function(){
				base.checkForEmpty(true);
			}).bind('keydown.infieldlabel',function(e){
				// Use of a namespace (.infieldlabel) allows us to
				// unbind just this method later
				base.hideOnChange(e);
			}).change(function(e){
				base.checkForEmpty();
			}).bind('onPropertyChange', function(){
				base.checkForEmpty();
			});
        };

		// If the label is currently showing
		// then fade it down to the amount
		// specified in the settings
		base.fadeOnFocus = function(){
			if(base.showing){
				base.setOpacity(base.options.fadeOpacity);
			};
		};

		base.setOpacity = function(opacity){
			base.$label.stop().animate({ opacity: opacity }, base.options.fadeDuration);
			base.showing = (opacity > 0.0);
		};

		// Checks for empty as a fail safe
		// set blur to true when passing from
		// the blur event
		base.checkForEmpty = function(blur){
			if(base.$field.val() == ""){
				base.prepForShow();
				base.setOpacity( blur ? 1.0 : base.options.fadeOpacity );
			} else {
				base.setOpacity(0.0);
			};
		};

		base.prepForShow = function(e){
			if(!base.showing) {
				// Prepare for a animate in...
				base.$label.css({opacity: 0.0}).show();

				// Reattach the keydown event
				base.$field.bind('keydown.infieldlabel',function(e){
					base.hideOnChange(e);
				});
			};
		};

		base.hideOnChange = function(e){
			if(
				(e.keyCode == 16) || // Skip Shift
				(e.keyCode == 9) // Skip Tab
			  ) return; 

			if(base.showing){
				base.$label.hide();
				base.showing = false;
			};

			// Remove keydown event to save on CPU processing
			base.$field.unbind('keydown.infieldlabel');
		};
      
		// Run the initialization method
        base.init();
    };

    $.InFieldLabels.defaultOptions = {
        fadeOpacity: 0.5, // Once a field has focus, how transparent should the label be
		fadeDuration: 300, // How long should it take to animate from 1.0 opacity to the fadeOpacity
		labelClass: 'infield' // Class to be applied to label when positioned over form field
    };


    $.fn.inFieldLabels = function(options){
        return this.each(function(){
			// Find input or textarea based on for= attribute
			// The for attribute on the label must contain the ID
			// of the input or textarea element
			var for_attr = $(this).attr('for');
			if( !for_attr ) return; // Nothing to attach, since the for field wasn't used


			// Find the referenced input or textarea element
			var $field = $(
				"input#" + for_attr + "[type='text']," + 
				"input#" + for_attr + "[type='password']," + 
				"textarea#" + for_attr
				);

			if( $field.length == 0) return; // Again, nothing to attach

			// Only create object for input[text], input[password], or textarea
            (new $.InFieldLabels(this, $field[0], options));
        });
    };

})(jQuery);