function checkform(){
	var err ='';
	var ok = 0;
	if (document.getElementById('fName').value=='') {
		ok = 1;
		err += '\t - Your first name\n';
    }
	if (document.getElementById('lName').value=='') {
		ok = 1;
		err += '\t - Your surname\n';
    }
	if (document.getElementById('email').value.indexOf('@') < 1) {
		ok = 1;
		err += '\t - A valid email address\n';
	}
	if (document.getElementById('telDay').value=='') {
		ok = 1;
		err += '\t - Your daytime telephone number\n';
    }
	if (document.getElementById('telEve').value=='') {
		ok = 1;
		err += '\t - Your evening telephone number\n';
    }
	if (document.getElementById('message').value=='') {
		ok = 1;
		err += '\t - Your comments\n';
    }
	if (document.getElementById('security_code').value=='') {
		ok = 1;
		err += '\t - SPAM Prevention Code\n';
    }
	if(ok == 1){
		alert('Please check the following details and try again.\n\n'+err);
		return false;
	} else {
		verify();
		return false;
	}
}