function validate_check(field, fieldname, fieldobj) {
	with (field){
		if ((value == null) || (value == "")){	
		  var x = "Please fill out your "
			document.getElementById(fieldobj).innerHTML = x + fieldname;
			field.focus();
			return false;
		} else {
      document.getElementById(fieldobj).innerHTML = "";
    }
	}
}

function checkform (form){


	with (form){
		if ((validate_check(sendername, "name", "nameerr") == false) ||
				(validate_check(senderemail, "email", "emailerr") == false) ||
        (verifyemail(senderemail, "emailerr") == false) ||
        (validate_check(query, "enquiry", "queryerr") == false)){
			return false;
		} else {
			return true;
		}
	}
}


function verifyemail (email, fieldobj){
	var emailRegEx = /^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$/i;
	if (email.value.search(emailRegEx) == -1){
	 document.getElementById(fieldobj).innerHTML = "Your Email is in incorrect form";
		return false;
	} else {
	document.getElementById(fieldobj).innerHTML = "";
		return true;
	}
}