function validate(frm) {
        if (frm.first_name.value.length == 0)
    {
        alert("Please enter your first name.")
        frm.first_name.focus()
        return false
    }
       
    if (frm.last_name.value.length == 0)
    {
        alert("Please enter your last name.")
        frm.last_name.focus()
        return false
    }
    
    
    if (frm.email.value.length == 0)
    {
        alert("Please enter your email address.")
        frm.email.focus()
        return false
    }
    
        
    if (frm.zip.value.length == 0)
    {
        alert("Please enter your zip code.")
        frm.zip.focus()
        return false
    }
    
        
    
    
    
}