function checkRadio (frmName, rbGroupName) {
 var radios = document[frmName].elements[rbGroupName];
 for (var i=0; i <radios.length; i++) {
 if (radios[i].checked) {
   return true;
  }
 }
 return false;
} 


function validate_form ( )
{
	
 
  	if ( document.contactForm.fullname.value == "" )
    {
        alert ( "Please fill in your name." );
        return false;
    }
    
 	else if ( document.contactForm.address.value == "" )
    {
        alert ( "Please fill in your address." );
        return false;
    }
    
    else if ( document.contactForm.city.value == "" )
    {
        alert ( "Please fill in your city." );
        return false;
    }
    
    else if ( document.contactForm.states.selectedIndex == 0 )
    {
        alert ( "Please select your state." );
        return false;
    }
    
    else if ( document.contactForm.zip.value == "" )
    {
        alert ( "Please fill in your zip code." );
        return false;
    }
    
    else if ( document.contactForm.phone.value == "" )
    {
        alert ( "Please fill in your phone number." );
        return false;
    }
    
    else if ( document.contactForm.email.value == "" )
    {
        alert ( "Please fill in your email address." );
        return false;
    }
   	
    else if ( document.contactForm.howFind.selectedIndex == 0 )
    {
        alert ( "Please select how you found us." );
        return false;
    }
    
    else if ( document.contactForm.subject.selectedIndex == 0 )
    {
        alert ( "Please select your subject." );
        return false;
    }
    else {
		return true;
	}
}