function onSubmitForm() {
    var formDOMObj = document.BHG_Contractor_Application;
    
    if (formDOMObj.Contact_FirstName.value == "")
    	alert("Please enter your first name.")
    	
    else if (formDOMObj.Contact_LastName.value == "")
    	alert("Please enter your last name.")
    	
    else if (formDOMObj.Contact_Street1.value == "")
    	alert("Please enter your street address.")
    	
    else if (formDOMObj.Contact_City.value == "")
    	alert("Please enter the name of your city.")
    	
    else if (formDOMObj.Contact_State.value == "")
    	alert("Please enter the name of your state or province.")
    	
    else if (formDOMObj.Contact_ZipCode.value == "")
    	alert("Please enter your zip code or zone.")
    	
    else if (formDOMObj.Contact_Country.value == "")
    	alert("Please enter the name of your country.")
    	
    else if (formDOMObj.Contact_Phone.value == "")
    	alert("Please enter your phone number.")
    	
    else if (formDOMObj.Contact_Email.value == "")
    	alert("Please enter your email address.")
    	
    else if (formDOMObj.Attachment1.value == "" && formDOMObj.Attachment2.value == "" && formDOMObj.Attachment3.value == "")
        alert("Please attach at least one sample of your best work. Click one of the three 'Browse...' buttons and select a file from your local drive.")
        
    else {
    	formDOMObj.Submit_Button.value = "Processing Form...";
    	formDOMObj.Submit_Button.disabled = true;
        return true;
    }
    return false;
}