window.onload = onLoad;
        function showHide(subText)
        {
        var textBlock=document.getElementById(subText);
        var imgSign=document.getElementById('g'+subText);
        if(textBlock.style.display=='block')
        {
        textBlock.style.display='none';
        imgSign.src='../images/whplus.gif';
        imgSign.alt='click to expand'
        }
        else
        {
        textBlock.style.display='block';
        imgSign.src='../images/whminus.gif';
        imgSign.alt='click to collapse'
        }

        }