function SimpleSwap(el,which){
  el.src=el.getAttribute(which || "origsrc");
}

function SimpleSwapSetup(){
  var x = document.getElementsByTagName("img");
  for (var i=0;i<x.length;i++){
    var oversrc = x[i].getAttribute("oversrc");
    if (!oversrc) continue;
    // preload image
    // comment the next two lines to disable image pre-loading
    x[i].oversrc_img = new Image();
    x[i].oversrc_img.src=oversrc;
    // set event handlers
    x[i].onmouseover = new Function("SimpleSwap(this,'oversrc');");
    x[i].onmouseout = new Function("SimpleSwap(this);");
    // save original src
    x[i].setAttribute("origsrc",x[i].src);
  }
}

function keyControl(){
	if( (event.keyCode < 48) || (event.keyCode > 57 ) ){
		event.keyCode = "".charCodeAt(0);
	}
}

function sendmail(){
one_check = 0;

if (document.form1.txtRagSoc.value == "" && one_check == 0){
first_check = "txtRagSoc";
one_check = 1;
}

if (document.form1.txtRef.value == "" && one_check == 0){
first_check = "txtRef";
one_check = 1;
}

if (document.form1.txtIndi.value == "" && one_check == 0){
first_check = "txtIndi";
one_check = 1;
}

if (document.form1.txtCitt.value == "" && one_check == 0){
first_check = "txtCitt";
one_check = 1;
}

if (checkMail("txtEmail") == false && one_check == 0){
first_check = "txtEmail";
one_check = 1;
}

if (document.form1.txtTel.value == "" && one_check == 0){
first_check = "txtTel";
one_check = 1;
}

if (document.form1.txMsg.value == "" && one_check == 0){
first_check = "txMsg";
one_check = 1;
}

if (one_check == 0){
document.form1.HdnFnc.value = 5;
document.form1.submit();
}
else{
	if (first_check != "accetta[0]"){
	document.form1[first_check].focus();
	}
}
}

function zoominn(image,evt){
	if (document.getElementById) {
	objimg = document.getElementById("imagetozoom");
	objimg.src=image;
	objdiv = document.getElementById("zoomdiv");
	objdiv.top = evt.top - 500;
	objdiv.style.visibility="visible";
	}
}

function checkMail(InputData){
Mail = document.form1[InputData].value;
var mailRet = false;
	Filtro = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-]{2,})+\.)+([a-zA-Z0-9]{2,})+$/;
  	if (Filtro.test(Mail)){
	mailRet = true;}
return mailRet;}