function checkForm(form) {
var errorMsg = "";
var contactMethodReg = "(home|work|mobile)";
var titleReg = "(Mr|Mrs|Ms|Miss|Dr|Other)";
var prefContactTimeReg = "(^(morning|afternoon|evening)\$)";
var prefContactMethodReg = "(^(email|phone)\$)";
var otherMin = 0;
var feedbackReg = "(^(Compliment|Complaint|Suggestion)\$)";
var contactDayReg = "(^([12][0-9]|3[01]|0?[1-9])\$)";
var contactMonthReg = "(^(01|02|03|04|05|06|07|08|09|10|11|12)\$)";
var contactYearReg = "(((19|20)[0-9][0-9])\$)";
var currentDate = new Date();
//Validate required fields on form
errorMsg +=isFieldValid(getSelectedOptionValue(form.title), "Title",1,5,"optionsList",titleReg);
if (getSelectedOptionValue(form.title)=="Other")
{
otherMin = 1;
}
errorMsg +=isFieldValid(form.otherTitle.value, "Other title",otherMin,15,"text");
errorMsg += isFieldValid(form.firstName.value, "First name",1,50, "text");
errorMsg += isFieldValid(form.surname.value, "Surname",1,50, "text");
errorMsg += isFieldValid(getSelectedOptionValue(form.prefContactMethod),"Preferred contact method",1,5,"custom",prefContactMethodReg);
errorMsg += isFieldValid(getSelectedOptionValue(form.prefContactTime),"Preferred contact time",0,9,"custom",prefContactTimeReg);
errorMsg += isFieldValid(form.contactDay.value,"Contact day",0,2,"custom",contactDayReg);
errorMsg += isFieldValid(form.contactMonth.value,"Contact month",0,2,"custom",contactMonthReg);
errorMsg += isFieldValid(form.contactYear.value,"Contact year",0,4,"custom",contactYearReg);
var contactDate = new Date(form.contactYear.value,form.contactMonth.value,form.contactDay.value);
if (form.contactYear.value!= "") {
if (contactDate < currentDate) {
errorMsg+= "The Contact date is in the past.