function Expand(id)
{
    try
    {
	avalue = document.getElementById(id+'a');
        
        atext = avalue.innerHTML ;
        atext = atext.substring(1) ;
        
        dclass = document.getElementById(id).className;
        if(dclass == "show")
        {
            document.getElementById(id).className = "hide";
            avalue.innerHTML = "+" + atext ;
        }
        else
        {
            document.getElementById(id).className = "show";
            avalue.innerHTML = "-" + atext ;
        }
    }
    catch(err)
    { 
    }
}