function validateForm() {

/*document.dlm.select.selectedIndex < 1 &&*/

    if (document.dlm.select.selectedIndex < 1 &&
        document.dlm.check1.checked == false &&
        document.dlm.check2.checked == false &&
        document.dlm.check3.checked == false &&
        document.dlm.check4.checked == false &&
        //document.dlm.check5.checked == false &&
        //document.dlm.check6.checked == false &&
        //document.dlm.check7.checked == false &&
        document.dlm.check8.checked == false &&
        document.dlm.checkCrazyMachines.checked == false &&
        document.dlm.checkCryostasis.checked == false &&
        document.dlm.checkDarkBasicFluidsDemo.checked == false &&
        document.dlm.checkDarkBasicSoftBodyDemo.checked == false &&
        //document.dlm.checkScreensaver.checked == false &&
        //document.dlm.checkScreensaverSource.checked == false &&
        document.dlm.checkPowerdirector.checked == false &&
        document.dlm.checktmpgenc.checked == false &&
        document.dlm.checkScreensaverSource.checked == false &&
        document.dlm.checkStarTales.checked == false &&
        document.dlm.checkSeti.checked == false) {
            //document.getElementById('errorMsg').innerHTML = 'You must select at least one item to download';
            alert ('You must select at least one item to download');
            return false;
        }
    //else if (document.dlm.select.selectedIndex < 1 && 
        //document.getElementById('drivercheck').checked ==true) {
            //document.getElementById('errorMsg').innerHTML = 'You must select an operating system to download a driver';
            //document.dlm.select.focus();
            //document.dlm.select.style.border = '2px solid red';
            //alert ('You must select an operating system to download a driver');
            //return false;
    //}
    else {
        return true;
    }
}

function clearChecks() {
    document.dlm.check1.checked = false;
    document.dlm.check2.checked = false;
    document.dlm.check3.checked = false;
    document.dlm.check4.checked = false;
    //document.dlm.check5.checked = false;
    //document.dlm.check6.checked = false;
    //document.dlm.check7.checked = false;
    document.dlm.check8.checked = false;
    document.dlm.checkCrazyMachines.checked = false;
    document.dlm.checkCryostasis.checked = false;
    document.dlm.checkDarkBasicFluidsDemo.checked = false;
    document.dlm.checkDarkBasicSoftBodyDemo.checked = false;
    //document.dlm.checkScreensaver.checked = false;
    document.dlm.checkPowerdirector.checked = false;
    document.dlm.checktmpgenc.checked = false;
    //document.dlm.checkScreensaverSource.checked = false;
    //document.dlm.checkSacred2.checked = false;
    document.dlm.checkStarTales.checked = false;
    document.dlm.checkMotionDSP.checked = false;
    document.dlm.checkSeti.checked = false;
}

function calcFileSize() {
    //driver = getItem();
    driver = 0;
    sacred2 = getSacredItem();
    check1 = getChecked('check1', '531.5');
    check2 = getChecked('check2', '8.3');
    check3 = getChecked('check3', '19.3');
    check4 = getChecked('check4', '1.3');
    //check5 = getChecked('check5', '964.9');
    //check6 = getChecked('check6', '550.9');
    //check7 = getChecked('check7', '293.1');
    check8 = getChecked('check8', '488.7');
    // new
    check9 = getChecked('checkCrazyMachines', '252.5');
    check10 = getChecked('checkCryostasis', '944.7');
    check11 = getChecked('checkDarkBasicFluidsDemo', '3.6');
    check12 = getChecked('checkDarkBasicSoftBodyDemo', '5.6');
    //check13 = getChecked('checkScreensaver', '10.9');
    check14 = getChecked('checkPowerdirector', '280');
    check15 = getChecked('checktmpgenc', '74');
    //check16 = getChecked('checkScreensaverSource', '10.9');
    //check17 = getChecked('checkSacred2', '837');
    check18 = getChecked('checkStarTales', '167');
    check19 = getChecked('checkMotionDSP', '70.7');
    check20 = getChecked('checkSeti', '6.3');


    sum = eval(driver + check1 + check2 + check3 + check4 + check8 + check9 + check10 + check11 + check12 + check14 + check15 + sacred2 + check18 + check19 + check20);
    total = sum.toFixed(2);
    
    document.getElementById('filesize').innerHTML = total;
}


function getChecked(item, size) {
    if (document.getElementById(item).checked == true) {
        return eval(size);
    }
    else {
        return null;
    }
}

function getSacredItem() {
    var kitSize;
    if (document.dlm.select.options[document.dlm.select.options.selectedIndex].value == "Sacred2-US-2_40_0_0.exe") {
        kitSize = 837;
        return kitSize;
    }
    else if (document.dlm.select.options[document.dlm.select.options.selectedIndex].value == "Sacred2-US-2_34_0_0-2_40_0_0.exe") {
        kitSize = 206;
        return kitSize;
    }
    else {
        return null;
    }
}

function getItem() {
    var driverSize;
    if (document.dlm.select.options[document.dlm.select.options.selectedIndex].value == "178.24_geforce_winvista_32bit_international_beta.exe") {
       driverSize = 112.3;
       return driverSize;
    }
    else if (document.dlm.select.options[document.dlm.select.options.selectedIndex].value == "178.24_geforce_winvista_64bit_international_beta.exe") {
       driverSize = 129.6;
       return driverSize;
    }
    else if (document.dlm.select.options[document.dlm.select.options.selectedIndex].value == "178.24_geforce_winxp_32bit_international_beta.exe") {
       driverSize = 122.6;
       return driverSize;
    }
    else if (document.dlm.select.options[document.dlm.select.options.selectedIndex].value == "178.24_geforce_winxp_64bit_international_beta.exe") {
       driverSize = 132.7;
       return driverSize;
    }
    else if (document.dlm.select.options[document.dlm.select.options.selectedIndex].value == "178.24_geforce_winvista_32bit_english_beta.exe") {
       driverSize = 84.0;
       return driverSize;
    }
    else if (document.dlm.select.options[document.dlm.select.options.selectedIndex].value == "178.24_geforce_winvista_64bit_english_beta.exe") {
       driverSize = 102.1;
       return driverSize;
    }
    else if (document.dlm.select.options[document.dlm.select.options.selectedIndex].value == "178.24_geforce_winxp_32bit_english_beta.exe") {
       driverSize = 84.3;
       return driverSize;
    }
    else if (document.dlm.select.options[document.dlm.select.options.selectedIndex].value == "178.24_geforce_winxp_64bit_english_beta.exe") {
       driverSize = 95.9;
       return driverSize;
    }
    else {
        return null;
    }
}

function showHidePopup(hide, show) {
    Effect.Appear(show, { duration: 1.0 });
    Effect.Fade(hide, { duration: 0.5 });
    //document.getElementById(hide).style.display = 'none';
    //document.getElementById(show).style.display = '';
}

function showHidePopupNew(hide, show) {
    var valid = validateForm();
    
    if (valid == true) {
        Effect.Appear(show, { duration: 1.0 });
        Effect.Fade(hide, { duration: 0.5 });
        DLMHelper.downloadSelected(group01);
    }
}

function imgSwap(id, source) {
    document.getElementById(id).src = source;
}

function slideDown(id) {
    Effect.SlideDown(id, { duration: 1.0 });

}

function getHeight() {
        var math = document.body.offsetHeight/2 - 812/2;
        if(document.body.offsetHeight >= 812){
            document.getElementById('wrapper').style.top = math + 'px';
        } else {
            document.getElementById('wrapper').style.top = '0px';
        }
    }