/*
	Author: MindFreakTheMon.com
	jQuery 1.3.* Required
	Script was tested on IE7,8; FF3.5; Opera 10.01;
	Chrome ans Safari understands HTML5-placeholder attribute, so there is no need in this script for them.
*/

(function($)
{
    if(!$) return false;

    $.fn.extend({
        storeEvents: function(b)
        {
            return this.each(function()
            {
                var copy = function(j)
                {
                    var o = {};
	
                    for(i in j)
                    {
                        o[i] = typeof(j[i]) == 'object' ? arguments.callee(j[i]) : j[i];
                    }
	
                    return o;
                };
				
                $.data(this, 'storedEvents', copy($(this).data('events')));
				
                if(b)
                {
                    $(this).unbind();
                }
            });
        },
        restoreEvents: function(b)
        {
            return this.each(function()
            {
                var events = $.data(this, 'storedEvents');
	
                if(events)
                {
                    if(!b)
                    {
                        $(this).unbind();
                    }
	
                    for(var type in events)
                    {
                        for(var handler in events[type])
                        {
                            $.event.add(this, type, events[type][handler], events[type][handler].data);
                        }
                    }
                }
            });
        },
        copyAttr: function(e, p, v)
        {
            return this.each(function()
            {
                var a = {}, i, n, m;
				
                if(p === true)
                {
                    for(i = 0, v = $.makeArray(v); i < this.attributes.length; i++)
                    {
                        n = this.attributes[i].nodeName;
                        m = this.attributes[i].nodeValue;
	
                        if(m && $.inArray(n, v) == -1)
                        {
                            a[n] =m;
                        }
                    }
                }
                else
                {				
                    for(i = 0, p = $.makeArray(p); i < p.length; i++)
                    {
                        if(typeof $(this).attr(p[i]) == 'string')
                        {
                            a[p[i]] = $(this).attr(p[i]);
                        }
                    }
                }
				
                $(this).attr(a);
            });			
        },
        blurfocus: function(options)
        {
            return this.each(function()
            {
                if($.browser.safari)
                {
                    return false;
                }
				
                var text = $(this).attr('placeholder');
                options = $.extend({
                    className: 'placeholded', 
                    handle_send: true, 
                    handle_password: true
                }, options || {});
				
                if($(this).is(':password') && options.handle_password)
                {
                    $(this).data('placeholded_type', 'password');
                }
				
                var blur = function(e)
                {
                    if($(this).val().length == 0)
                    {
                        if($(this).data('placeholded_type') == 'password')
                        {
                            var input = $('<input type="text" name="' + $(this).attr('name') + '" />'), events = $(this).storeEvents(true).data('storedEvents');
                            $(this).copyAttr(input, true, ['type', 'name']).replaceWith(input);
                            input.blur().data('placeholded_type', 'password').data('storedEvents', events).restoreEvents();
                        }
                        else
                        {
                            var input = $(this);
                        }

                        input.attr('readonly', true).val(text).addClass(options.className);
                    }
                }, focus = function(e)
                {
                    if($(this).val() == text && $(this).hasClass(options.className))
                    {
                        if($(this).data('placeholded_type') == 'password')
                        {
                            var input = $('<input type="password" name="' + $(this).attr('name') + '" />'), events = $(this).storeEvents(true).data('storedEvents');
                            $(this).copyAttr(input, true, ['type', 'name']).replaceWith(input);
                            input.focus().data('placeholded_type', 'password').data('storedEvents', events).restoreEvents();
                        }
                        else
                        {
                            var input = $(this);
                        }
						
                        input.val('').removeAttr('readonly').removeClass(options.className);
                    }
                }, click = function()
                {
                    focus.call(this);
                    $(this).storeEvents(true).focus().restoreEvents();
                }, keydown = function(e)
                {
                    if(e.keyCode == 9)
                    {
                        if(!$.browser.msie)
                        {
                            blur.call(this);
                        }
	
                        e.stopPropagation();				
                    }
                };
				
                if($(this).is(':password, :text, textarea'))
                {
                    $(this).val($(this).val() == text ? '' : $(this).val()).blur(blur).focus(focus).click(click).keydown(keydown).blur();
					
                    if(options.handle_send)
                    {
                        $(this).parents('form:eq(0)').each(function()
                        {
                            if($(this).data('placeholder_form') != 'handled')
                            {
                                events = $(this).data('placeholder_form', 'handled').storeEvents().data('storedEvents');
                                eval('var anonfunc = function(){ ' + ($(this).attr('onsubmit') || '') + ' };');
                                events.submit = $.extend(true, {
                                    'spec_sub': function(){
                                        $(this).find('.' + options.className).focus();
                                    }
                                },  events.submit, {
                                    'anonfunc': anonfunc, 
                                    'spec_aft': function(e){
                                        if(e.isDefaultPrevented()) $(this).find(':input').blur();
                                    }
                                });
                        $(this).removeAttr('onsubmit').data('storedEvents', events).restoreEvents();
                        }
                    });
            }
            }
        });
    }
});
	
$(function()
{
    $(":input[placeholder]").each(function(){
        $(this).blurfocus($(this).attr('placeholder'));
    });
});
})(jQuery);