function MouseHandle(img, fm, msg)
{
  if(document.images)
  {
    document.images[fm].src=img;
  }
  status = msg;
  return true;
}

function AlertGoBack(msg)
{
			alert(msg);
			history.back(1);
}

var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;

function formSubmit(form)
{
    if (form.first_name.value.length<1){
        alert("Please enter a first name.");
        form.first_name.focus();
        return false;
    }
    if (form.last_name.value.length<1){
        alert("Please enter a last name.");
        form.last_name.focus();
        return false;
    }
    if (form.email.value.length>=1){
        if (!filter.test(form.email.value)){
            alert("Please enter a valid email address.");
            form.email.select();
            form.email.focus();
            return false;
        }
    }
    if (form.address1.value.length<1){
        alert("Please enter a street address.");
        form.address1.focus();
        return false;
    }
    if (form.city.value.length<1){
        alert("Please enter a city.");
        form.city.focus();
        return false;
    }
    if (form.state.value.length<1){
        alert("Please select a state.");
        form.state.focus();
        return false;
    }
    if (form.zip.value.length<5) {
        alert("Please enter a valid zip code");
        form.zip.focus();
        return false;
    }
}