function isN(Obj) {
    var Digit = "0123456789";
    for(i=0;i<Obj.value.length;i++) {
        if(Digit.indexOf(Obj.value.charAt(i)) == -1) {
          //alert("Campo:  "+Obj.name+"\n\nInserire un valore numerico\n"); 

          Obj.focus();
          return false
        }
    }
    return true;
}

function isNneg(Obj) {
    var Digit = "0123456789";
    var Sign = "-";
    i = 0
    if(Sign.indexOf(Obj.value.charAt(0)) == 0) i = 1
    for(;i<Obj.value.length;i++) {
        if(Digit.indexOf(Obj.value.charAt(i)) == -1) {
          //alert("Campo:  "+Obj.name+"\n\nInserire un valore percentuale (es.-20, 10)\n"); 
          Obj.focus();
          return false
	}
    }
    return true;
}


function isEuro(Obj) {
    cValue = String(Obj.value);
    Obj.value = cValue.replace(/\./,",");
    var Digit = ",0123456789";
    for(i=0;i<Obj.value.length;i++) {
        if(Digit.indexOf(Obj.value.charAt(i)) == -1) {
          //alert("Campo:  "+Obj.name+"\n\nInserire un valore numerico (es. 123.55)\n"); 
          Obj.focus();
          return false
        } else {
	    if(Digit.indexOf(Obj.value.charAt(i)) == 0) Digit = "0123456789";
	}
    }
    cValue = String(Obj.value);
    cValue = cValue.replace(/,/,".");
    Obj.value = Math.round(cValue * 100) / 100
    cValue = String(Obj.value);
    Obj.value = cValue.replace(/\./,",");
    return true;
}

function RoundEuro(num) {
    return Math.round(num * 100) / 100
}

function ChkNRange(Obj, Min, Max) {
    cValue = String(Obj.value);
    cValue = cValue.replace(/,/,".");
    var num = 1*cValue;
    //alert(num);
    if (isEuro(Obj)) {
      if (num  < Min || num > Max) {
		return false;
      }
    }else{
		return false;
	}
	return true;
}

function AbilitaDisabilitaPassword(option, pass, pass_label){
	
	if (option.checked){
		if (option.value == "S"){
			pass.disabled = false;
			pass.style.visibility = "visible";
			pass_label.style.visibility = "visible";
			get(document.preventivo.email, option);
		}
		if (option.value == "N"){
			pass.value = "";
			pass.disabled = true;
			pass.style.visibility = "hidden";
			pass_label.style.visibility = "hidden";
			$("p.alertbox").fadeOut();
		}
	}else{
		pass.value = "";
		pass.disabled = true;
		pass.style.visibility = "hidden";
		pass_label.style.visibility = "hidden";
		$("p.alertbox").fadeOut();
	}
}