/*submit once*/
function submitonce(theform){
//if IE 4+ or NS 6+
if (document.all||document.getElementById){
//screen thru every element in the form, and hunt down "submit" and "reset"
for (i=0;i<theform.length;i++){
var tempobj=theform.elements[i]
if(tempobj.type.toLowerCase()=="submit"||tempobj.type.toLowerCase()=="reset")
//disable em
tempobj.disabled=true
}
}
}
/*fine*/ 

/*enter disabilitato nei form*/

function disableEnterKey(e)
{
     var key;

     if(window.event)
          key = window.event.keyCode;     //IE
     else
          key = e.which;     //firefox

     if(key == 13)
          return false;
     else
          return true;
}	



/*fine*/ 


/*inizio conta caratteri*/
	function checkChars(aTextarea) {
	  var max = 125;
	  var a = aTextarea.value;
	  document.getElementById('conta').innerHTML = "<b>" + a.length + "</b>/125 caratteri";
	 
	  if (a.length > max) {
	    alert('Non puoi superare i 125 caratteri');
	    aTextarea.value = a.substr(0,max);
	    return false;
	  }
	  return true;
	}
	
	/*fine*/  


/*script reload captcha*/

function RefreshImage(valImageId) {
	var objImage = document.images[valImageId];
	if (objImage == undefined) {
		return;
	}
	var now = new Date();
	objImage.src = objImage.src.split('?')[0] + '?x=' + now.toUTCString();
}

/*fine*/ 


/*mostra/nascondi div*/

function mostra(valore) {  
				 
  if (document.getElementById(valore).style.display == 'block') {
	
	   	document.getElementById(valore).style.display='none'; 
		
 } else {
 
	   	document.getElementById(valore).style.display='block';
  	   
   		}
		
  }	  	
				  
/*fine*/