function esnumero(cadena,form)
{
 var i=0, j=0,digits = '1234567890 ';

 for (i=0; i < cadena.length ; i ++ )
 {
  is_digit=0;
  for (j=0; j < digits.length; j++)
	  {
	   if (cadena.charAt(i) == digits.charAt(j))   is_digit=1;
	  }
   if (!is_digit)
	   {
    	 return(1);
	   }
 }
 return(0);
}

function comprova_mail(text1,form){

var count=0;
var punt=0;
for (t=0;t<text1.length;t++) {

	if (text1.charAt(t) =='.') {punt++;} 
	
	if ( (text1.charAt(t) =='ñ') || (text1.charAt(t) =='+') || (text1.charAt(t) =='-') || (text1.charAt(t) =='.') || (text1.charAt(t) =='_') || (text1.charAt(t) =='@') || (text1.charAt(t) >='a' && text1.charAt(t) <='z') || (text1.charAt(t) >='A' && text1.charAt(t) <='Z') || (text1.charAt(t) >='0' && text1.charAt(t) <='9') ) 
	{ 
	if (text1.charAt(t) !='@' && text1.charAt(t) !='.' && count==0) count=1; 
	if (text1.charAt(t) =='@' && count==1) count=2; 
	if (text1.charAt(t) !='@' && text1.charAt(t) !='.' && count==2) count=3; 
	if (text1.charAt(t) =='.' && count==3 ) count=4; 
	if (text1.charAt(t) !='@' && text1.charAt(t) !='.' && count==5) count=6; 
	if (text1.charAt(t) !='@' && text1.charAt(t) !='.' && count==4) count=5; 
	}
	else {return(1);}
}
if (count!=6 || punt>1) {

	return(1);
	}

return(0);
}


function comprueba(form) {

var recuento=0;
var t=0;

if (form.nombre.value=="") {t=1;form.camp0.value=1;}
if (form.telefono.value=="") {t=1;form.camp1.value=1;}
if (comprova_mail(form.email.value,form)==1) {t=1;form.camp2.value=1;}

if (t==0)
{
form.submit();
}
else {
alert("Existeixen camps incorrectes. Si us plau, ompli correctament els camps de color vermell.");
form.action="club_icaria.php";
form.submit();
}

}