function ClientSearchClick() {
    var checked = document.getElementById('ctl00_PageContentPlaceHolder_IncludeNonOmsCheckBox').checked;
    var text = document.getElementById('ctl00_PageContentPlaceHolder_PostCodeTextBox').value;

    if (text.length > 0 && checked)
        return confirm('Please note: Some of the retailers shown may not support the measuring of party members where the booking has been made at a different store.\n\nIf this is required, look for retailers with (Network Member) after their name.\n\nDo you still wish to proceed?');
    else
        return true;
}