function highlightLinks(obj) {
   document.getElementById('returnrisk').className="";
   document.getElementById('styleanalysis').className="";
   document.getElementById('holdings').className="";
   document.getElementById('searchbooks').className="";
   document.getElementById('database').className="";
   document.getElementById(obj).className="active";
   return false;
}
function returnRiskImage(obj) {
   document.getElementById('returnrisk1').className="";
   document.getElementById('returnrisk2').className="";
   document.getElementById('returnrisk3').className="";
   document.getElementById('returnrisk4').className="";
   document.getElementById('returnrisk5').className="";
   document.getElementById(obj).className="active";
   return false;
}
function styleImage(obj) {
   document.getElementById('style1').className="";
   document.getElementById('style2').className="";
   document.getElementById('style3').className="";
   document.getElementById('style4').className="";
   document.getElementById('style5').className="";
   document.getElementById(obj).className="active";
   return false;
}
function holdingsImage(obj) {
   document.getElementById('holdings1').className="";
   document.getElementById('holdings2').className="";
   document.getElementById('holdings3').className="";
   document.getElementById('holdings4').className="";
   document.getElementById('holdings5').className="";
   document.getElementById(obj).className="active";
   return false;
}

function initPep() {
   var maxHeight = Math.max(
       document.getElementById('returnrisk').offsetHeight,
       document.getElementById('styleanalysis').offsetHeight,
       document.getElementById('holdings').offsetHeight,
       document.getElementById('searchbooks').offsetHeight,
       document.getElementById('database').offsetHeight
   );
   
   maxHeight += 'px';
   document.getElementById('returnrisk').style.height = maxHeight;
   document.getElementById('styleanalysis').style.height = maxHeight;
   document.getElementById('holdings').style.height = maxHeight;
   document.getElementById('searchbooks').style.height = maxHeight;
   document.getElementById('database').style.height = maxHeight;
}

if (window.attachEvent) {
    attachEvent("onload",initPep);
}
else if (window.addEventListener) {
    addEventListener("load",initPep,true);
}