//*************************************************************************
// Helper Functions
//*************************************************************************  
function toggleDisplay(linkId, popId) {
    var pop = document.getElementById(popId);
    var link = document.getElementById(linkId);

    if (pop.className == 'popOff') {
        pop.className = 'popOn';
        link.className = 'facetOn';
    }
    else {
        pop.className = 'popOff';
        link.className = 'facetOff';
    }
}