function checkJob1() {
	err="";
	if (document.job1.name.value == "") { err = err+"- Fill in Name\n"; }; 
	if (document.job1.surname.value == "") { err = err+"- Fill in Surname\n"; }; 
	if (document.job1.iso_nationality.value == "") { err = err+"- Fill in Nationality\n"; };
	if (document.job1.yearofbirth.value == "") {
		err = err+"- Fill in Year of birth\n";
	} else {
		if (!checkYear()) {
			err = err+"- Year of birth must be more than 1930\n";
		}
	}; 
	if (document.job1.postcode.value == "") { err = err+"- Fill in Post code\n"; }; 
	if (document.job1.iso_residence.value == "") { err = err+"- Fill in Country of residence\n"; };
	if (document.job1.phone.value == "") { err = err+"- Fill in Phone number\n"; }; 
	if (document.job1.email.value == "") {
		err = err+"- Fill in Email\n";
	} else {
		if (!emailvalidation(document.job1.email)) {
			err = err+"- Email is not valid\n";
		}
	}; 
	if (!checkCheckbox()) { err = err+"- Select an Area of expertise\n" }
	if (err!="") { alert(err); return false;	}
	
}; 

function emailvalidation(entered) {
	with (entered) {
		apos=value.indexOf("@");
		dotpos=value.lastIndexOf(".");
		spacepos=value.lastIndexOf(" ");
		lastpos=value.length-1;
		if (apos<1 || dotpos-apos<2 || lastpos-dotpos>3 || lastpos-dotpos<2 || spacepos>-1) {
			return false;
		} else {return true;}
	}
}

function checkYear() {
	var chk = false;
	if (document.job1.yearofbirth.value>1930) {
		chk = true;
	}
	return chk;
}