function numonly(field) {
field.value=field.value.replace(/[^0-9]/g, '');
}
function Contact () {
$('form').style.display = "none";
$('alert').style.display = "block";

}
function Loading () {
$('alert').style.display = "block";
}

function CheckForm () {
var error = "";
 var i;
var error1 = "";
var msg = "";

 
    if ($('form').f2.value.length == 0) {
	       error = "error"
		       if (msg != "") {
		   msg = msg + ", Firstname";
		   } else {
		   msg = "Firstname";
		   }
    } else {
    //	$('form').fl1.style.background = "blue";
    }
	    if ($('form').f3.value.length == 0) {
	       error = "error"
		      if (msg != "") {
		   msg = msg + ", Surname";
		   } else {
		   msg = "Surname";
		   }
    } else {
    //	$('form').fl1.style.background = "blue";
    }
	   	error1 += checkemail2($('form').f4);
	     if (error1 != "") {
		 if(msg != "") {
		   msg = msg + ", Email";
		   }else {
		     msg = msg + " Email";
		   }
		   error = "error";
		    }
	
if ($('form').f4.value != $('form').f5.value) {
	  error = "error"
		         if (msg != "") {
		   msg = msg + ", Confirm Email";
		   } else {
		   msg = "Confirm Email";
		   }
    } else {
    //	$('form').fl1.style.background = "blue";
    }
	    if ($('form').f6.value.length == 0) {
	       error = "error"
		      if (msg != "") {
		   msg = msg + ", Telephone";
		   } else {
		   msg = "Telephone";
		   }
    } else {
    //	$('form').fl1.style.background = "blue";
    }
	    if ($('form').f7.value.length == 0) {
	       error = "error"
		       if (msg != "") {
		   msg = msg + ", Street";
		   } else {
		   msg = " Street";
		   }
    } else {
    //	$('form').fl1.style.background = "blue";
    }
		    if ($('form').f8.value.length == 0) {
	       error = "error"
	    if (msg != "") {
		   msg = msg + ", City";
		   } else {
		   msg = "City";
		   }
    } else {
    //	$('form').fl1.style.background = "blue";
    }
	
		    if ($('form').f10.value.length == 0) {
	       error = "error"
		     if (msg != "") {
		   msg = msg + ", Postal Code";
		   } else {
		   msg = "Postal Code";
		   }
    } else {
    //	$('form').fl1.style.background = "blue";
    }
			    if ($('form').f11.value.length == 0) {
	       error = "error"
		       if (msg != "") {
		   msg = msg + ", County";
		   } else {
		   msg = "County";
		   }
    } else {
    //	$('form').fl1.style.background = "blue";
    }
				    if ($('form').f12.checked == false) {
	       error = "error"
		       if (msg != "") {
		   msg = msg + ",  	I want to Charter 'Odysseus' ";
		   } else {
		   msg = " 	I want to Charter 'Odysseus' ";
		   }
    } else {
    //	$('form').fl1.style.background = "blue";
    }

				    if ($('form').f13.checked == false) {
	       error = "error"
		       if (msg != "") {
		   msg = msg + ", I have read the Reservation Conditions";
		   } else {
		   msg = "I have read the Reservation Conditions";
		   }
    } else {
    //	$('form').fl1.style.background = "blue";
    }
if (error != "") {
  // alert("Some of the fields were not completed correctly, please correct them and try again. There are problems with the following fields: "+wg.slice(0, -2)+".");

   alert("The following fields have been incorrectly filled in: "+ msg);
  return false;
}
}

function checkemail(email) {
	var error = "";
	apos=email.value.indexOf("@")
	dotpos=email.value.lastIndexOf(".")

if (email.value == "" || apos<1 || dotpos-apos<2)
{
// email.className = "form-inp-";
 		error = "error";
} else {
 //email.className = "form-inp";
}
    return error;  
}
function checkemail2(email) {
	var error = "";
	apos=email.value.indexOf("@")
	dotpos=email.value.lastIndexOf(".")

if (email.value == "" || apos<1 || dotpos-apos<2)
{
// email.className = "form-inp-";
 		error = "Email";
} else {
 //email.className = "form-inp";
}
    return error;  
}