// JavaScript Document _  Funzioni di utility per il sito

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function isEmail(pCampo)
{
	pCampo.value = trim(pCampo.value);
	var emailExp = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;
	if(pCampo.value.match(emailExp)){
		return true;
	}else{
		alert("Indirizzo di posta elettronica errato");
		return false;
	}
}
function trim(str) 
{
	var resultStr = "";
	
	if (str != null)
	{
		resultStr = trimLeft(str);
		resultStr = trimRight(resultStr);
	}
	
	return resultStr;
} // end Trim

function trimLeft(str) 
{
	var resultStr = "";
	var i = len = 0;
	
	// Return immediately if an invalid value was passed in
	if (str + "" == "undefined" || str == null)	
		return "";

	// Make sure the argument is a string
	str += "";

	if (str.length == 0) 
		resultStr = "";
	else 
	{	
  		// Loop through string starting at the beginning as long as there
  		// are spaces.
		//	  	len = str.length - 1;
		len = str.length;
					
  		while ((i <= len) && (str.charAt(i) == " "))
			i++;
	
   	// When the loop is done, we're sitting at the first non-space char,
 		// so return that char plus the remaining chars of the string.
  		resultStr = str.substring(i, len);
  	}
			
  	return resultStr;
} // end TrimLeft
			
function trimRight(str) 
{
	var resultStr = "";
	var i = 0;
	
	// Return immediately if an invalid value was passed in
	if (str + "" == "undefined" || str == null)	
		return "";

	// Make sure the argument is a string
	str += "";
		
	if (str.length == 0) 
		resultStr = "";
	else 
	{
  		// Loop through string starting at the end as long as there
 		// are spaces.
  		i = str.length - 1;
  		while ((i >= 0) && (str.charAt(i) == " "))
 			i--;
			 			
 			// When the loop is done, we're sitting at the last non-space char,
	 		// so return that char plus all previous chars of the string.
	  		resultStr = str.substring(0, i + 1);
	  	}
	  	
	  	return resultStr;  	
} // end TrimRight