function checkemail() {
    var str=document.contact.email.value
    var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i
    if (filter.test(str))
        testresults=true
    else{        alert("Please provide a valid email address so that we may reply to you.")
        testresults=false
    }
    return (testresults)
}