function ValidateForm(form) {
    if (form.txtName.value == "") {
        alert('You have not entered an Name')
        form.txtName.focus();
        return false;
    }
    if (form.txtEmail.value == "") {
        alert('You have not entered an Email.')
        form.txtEmail.focus();
        return false;
    }
    if ((form.txtEmail.value.indexOf('@', 0) == -1 || form.txtEmail.value.indexOf('.', 0) == -1) && form.txtEmail.value != "") {
        alert('Please verify your email address.')
        form.txtEmail.focus();
        return false;
    }

    if (form.found.options[0].selected == true) {
        alert('Please tell us how you found our website.')
        form.found.focus();
        return false;
    }

    if (form.txtComments.value == "") {
        alert('Please leave some comments.')
        form.txtComments.focus();
        return false;
    }

    return true;
} 

function openVideo() {
    window.open('watercrest-10-ad.html', 'WaterCrest-10 in Action', 'height=600, width=575, statusbar=no, toolbar=no, menubar=no, scrollbars=no, resizable=no');
}