function popImg(iName) {
            var pURL=''+iName;
                pInfo='toolbar=0,';
                pInfo+='location=0,';
                pInfo+='directories=0,';
                pInfo+='status=0,';
                pInfo+='menubar=0,';
                pInfo+='scrollbars=0,';
                pInfo+='resizable=1,';
                pInfo+='width=370,';
                pInfo+='height=490';
            window.open(pURL, 'bigPop', pInfo);
        }


function ShowHide(divId)
{
var id = document.getElementById(divId);
if (id.style.display == "none")
{
eval("id.style.display = 'block';");
}
else
{
eval("id.style.display = 'none';");
}
}

function ShowHideAll(show)
{
var divs = document.getElementsByTagName("div");
for (var i = 0; i < divs.length; i++)
{
var divId = divs[i].id;
if ( divId.indexOf("a_") == 0 )
{
if( true == show ) {
eval("document.getElementById('" + divId + "').style.display = 'block'");
} else {
eval("document.getElementById('" + divId + "').style.display = 'none'");
}
}
}
}

function ToggleAnswers() {
var tog = document.getElementById("Toggle");
//if(null != tog) {
if( tog.innerText == "Show all answers") {
ShowHideAll(true);
tog.innerText = "Hide all answers";
} else {
ShowHideAll(false);
tog.innerText = "Show all answers";
}
//}
}