function showSurnameHelp()
{
    document.getElementById("helpcell").innerHTML = 'In the Surname box you may enter a partial name. '
            + '<br>&bull;Use the \'_\' character to match on any single character.'
            + '<br>&bull;Use the \'%\' character to match on a sequence of 0 or more characters.'
            + '<br>&bull;An implicit \'%\' is always appended to the name.'
            + '<br>&bull;e.g.: \'sm_th\' will yield \'smeth\', \'smith\', \'smathe\' &amp; \'smythe\' (among others). '
            + '<br>\'sm%th\' would also yield \'smeathe\''
            + '';
}
function showKeywordHelp()
{
    document.getElementById("helpcell").innerHTML = 'The search will try to find an <u>exact</u> match with the word'
            + '<br>you enter in the Keyword box on:'
            + '<br>&bull;Author'
            + '<br>&bull;Title'
            + '<br>or a match on the classification of an item (not displayed in the results)'
            + '';
}

