$(document).ready(function(){
		$('#my_textarea').simplyCountable({
    		counter: '#counter',
    		countable: 'characters',
 	   		maxCount: 900,
 	   		strictMax: true,
  	  		countDirection: 'down',
    		safeClass: 'safe',
   			overClass: 'over',
    		thousandSeparator: ','
		});
		
		$('#my_textarea').bind('focus', function(){
			if ( $("#my_textarea").attr("value")=="Descrizione" ){
				$("#my_textarea").attr("value", "");
			}
		});
		
		$('#my_textarea').bind('blur', function(){
			if ( $("#my_textarea").attr("value")=="" ){
				$("#my_textarea").attr("value", "Descrizione");
			}
		});
	}
);