function formSubmit(){
    var sName = document.getElementById('name').value;
    var sDesignation = document.getElementById('designation').value;
    var sCompany = document.getElementById('company').value;
    var sEmail = document.getElementById('email').value;
    var sLocation = document.getElementById('location').value;
    var sInterestarea = document.getElementById('interestarea').value;
    var sErrors = '';
    if ((sName == 'Name') || (sName == '')) {
        sErrors += "Please enter your name.\n";
    }
    if ((sDesignation == 'Designation') || (sDesignation == '')) {
        sErrors += "Please enter your Designation.\n";
    }
    if ((sCompany == 'Company Name') || (sCompany == '')) {
        sErrors += "Please enter Company.\n";
    }
    if ((sEmail == 'Email ID') || (sEmail == '')) {
        sErrors += "Please enter your Email Id.\n";
    }
    if ((sLocation == '--Location--') || (sLocation == '')) {
        sErrors += "Please enter Location.\n";
    }
    if ((sInterestarea == '--Interest Area--') || (sInterestarea == '')) {
        sErrors += "Please enter Interest area.\n";
    }
    if (sErrors) {
        alert("Please correct the following errors\n\n"+sErrors);
        return false;
    }else{
        return true;
    }
}