function ShowHide(strDivName,bolVisible){
    //figure out what browser we are dealing with
    isNS4 = (document.layers) ? true : false;
    isIE4 = (document.all && !document.getElementById) ? true : false;
    isIE5 = (document.all && document.getElementById) ? true : false;
    isNS6 = (!document.all && document.getElementById) ? true : false;
    //identify the element based on browser type
    if (isNS4){
       objElement = document.layers[strDivName];
    } else if (isIE4) {
       objElement = document.all[strDivName];
    } else if (isIE5 || isNS6) {
       objElement = document.getElementById(strDivName);
    }
    //set the visibility
		objElement.style.visibility = bolVisible ;
    return;
}