// JavaScript Document
function hideAllHomeLayers() {
    document.getElementById('entryReqAccount').style.display='none';
    document.getElementById('entryLogin').style.display='none';
}
function showHomeLayer(thisOne) {
    hideAllHomeLayers();
    document.getElementById(thisOne).style.display='block';
}

var submitFlag = false;
function checkShowAlert() {
    var errorFound = false;
    var errorMessage = '';

    if ((document.form1.accountid.value == '') && (document.form1.password.value == '')) {
        errorMessage = 'please enter your account id and password';
        errorFound = true;
    } else if ((document.form1.accountid.value != '') && (document.form1.password.value == '')) {
        errorMessage = 'please enter your password';
        errorFound = true;
    } else if ((document.form1.accountid.value == '') && (document.form1.password.value != '')) {
        errorMessage = 'please enter your account id';
        errorFound = true;
    } else {
        errorFound = false;
    }

    if (document.form1.agree.checked == false) {
        if (errorFound == true) {
            errorMessage += ' and you must agree to the user agreement to use the catalog.';
        } else {
            errorMessage = 'You must agree to the user agreement to use the catalog.';
        }
        errorFound = true;
    }

    if (errorFound == true) {
        alert(errorMessage);
        submitFlag = false;
    } else {
        submitFlag = true;
    }
    // document.form1.textfield.value = submitFlag;
    return submitFlag;
}
function checkForm() {
    if (checkShowAlert() == true) {
        document.form1.submit();
    }
}