$(document).ready(
      	function()
      	{      		
      	
      		
      		$('a.mailme').mailme();
      		 
      		      	
		setTimeout(function() 
		{
		       $(".ukryj").slideToggle("slow");

		}, 5000);
		
		var links = $(".external")
		for (var i=0; i<links.length; i++) 
		{
				links[i].target = "_blank";
		}		
      		
      	}
);

function clearText(field)
{
if (field.defaultValue == field.value) field.value = '';
else if (field.value == '') field.value = field.defaultValue;
}


jQuery.fn.mailme = function() {
    var at = / at /;
    var dot = / dot /g;
    this.each( function() {
        var addr = jQuery(this).text().replace(at,"@").replace(dot,".");
        var title = jQuery(this).attr('title')
        $(this)
            .after('<a href="mailto:'+addr+'" title="'+title+'">'+ addr +'</a>')
            .remove();
    });
};

(function($){ 
     $.fn.extend({  
         limit: function(limit,element) {
			
			var interval;
			var self = $(this);
					
			$(this).focus(function(){
				interval = window.setInterval(substring,100);
			});
			
			$(this).blur(function(){
				clearInterval(interval);
				substring();
			});
			
			function substring(){
				var val = $(self).val();
				var length = val.length;		
				if(typeof element != 'undefined')
					$(element).html((limit-length<=0)?'0':limit-length);
				if(length > limit)
					$(self).val($(self).val().substring(0,limit));
			}
			
			substring();
			
        } 
    }); 
})(jQuery);