(function ($) {

$.fn.maxlength = function (settings) {

    if (typeof settings == 'string') {
        settings = { feedback : settings };
    }

    settings = $.extend({}, $.fn.maxlength.defaults, settings);

    function length(el) {
    	var parts = el.value;
    	if ( settings.words )
    		parts = el.value.length ? parts.split(/\s+/) : { length : 0 };
    	return parts.length;
    }
    
    return this.each(function () {
        var field = this,
        	$field = $(field),
        	$form = $(field.form),
        	limit = settings.useInput ? $form.find('input[name=maxlength]').val() : $field.attr('maxlength'),
        	$charsLeft = $form.find(settings.feedback);

    	function limitCheck(event) {
        	var len = length(this),
        	    exceeded = len >= limit,
        		code = event.keyCode;

        	if ( !exceeded )
        		return;

            switch (code) {
                case 8:  // allow delete
                case 9:
                case 17:
                case 36: // and cursor keys
                case 35:
                case 37: 
                case 38:
                case 39:
                case 40:
                case 46:
                case 65:
                    return;

                default:
                    return settings.words && code != 32 && code != 13 && len == limit;
            }
        }


        var updateCount = function () {
            var len = length(field),
            	diff = limit - len;

            $charsLeft.html( diff || "0" );

            // truncation code
            if (settings.hardLimit && diff < 0) {
            	field.value = settings.words ? 
            	    // split by white space, capturing it in the result, then glue them back
            		field.value.split(/(\s+)/, (limit*2)-1).join('') :
            		field.value.substr(0, limit);

                updateCount();
            }
        };

        $field.keyup(updateCount).change(updateCount);
        if (settings.hardLimit) {
            $field.keydown(limitCheck);
        }

        updateCount();
    });
};

$.fn.maxlength.defaults = {
    useInput : false,
    hardLimit : true,
    feedback : '.charsLeft',
    words : false
};

})(jQuery);



(function($){
 	$.fn.extend({ 
 		defValInput: function() {
 			
    		return this.each(function() {
		
		    	var obj = $(this);
		    	var def = $(this).attr('default');
		    	
		    	if((this.type != 'text' && this.type != 'password' && this.type != 'textarea') || !def)
		    	{
		    		return;
		    	}

		    	$(this).focus(function(){
				  if($.trim($(this).attr('value'))==def)
				  {
				  	$(this).attr('value', '');
				  }
				}).blur(function(){
				 	if($.trim($(this).attr('value'))=='')
					  {
					  	$(this).attr('value', def);
					  }
				}).blur();
    		});
    	}
	});
})(jQuery);



(function($){
 	$.fn.extend({ 
 		isOk: function(func) {
 			
 			var ok = true;
 			
    		this.each(function() {
		
    			if((this.type != 'text' && this.type != 'password' && this.type != 'textarea'))
		    	{
		    		return;
		    	}
    			
		    	var obj = $(this);
		    	var def = $(this).attr('default');
		    	var val = $.trim($(this).attr('value'));
		    	
		    	
				if(val == '' || val==def)
				{
					ok = false;
					$(this).addClass('txtSubError').fadeOut('fase').fadeIn('fase');
				}
		    	else
		    	{
		    		$(this).removeClass('txtSubError');
		    	}
				
    		});
    		
    		if(ok)
    		{
    			func();
    		}
    		
    		return ok;
    	}
	});
})(jQuery);