function changeImages(im) {
        overImage = eval('document.images.over'+im.name);
        outImage = eval('document.images.out'+im.name);
        //Roll back image - get src from lowsrc field
        if (im.src == overImage.src) im.src = outImage.src;
        else im.src = overImage.src;// Rollover image
  	}

     //detect browser settings for showing and hiding DIVs
     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;
    
    function switchDiv(strDivName, qNum, numQ, bolVisible){
  		for (var x=0; x<numQ; x++) {
  				 var divN = 'a_'+x;
           if (isNS4) {
             objElement = document.layers[divN];
           } else if (isIE4) {
             objElement = document.all[divN];
           } else if (isIE5 || isNS6) {
             objElement = document.getElementById(divN);
           }
  				 if (x != qNum) {
  			     objElement.style.position="absolute";
             objElement.style.visibility = "hidden";
  				 }
  				 else {
  					 objElement.style.position="relative";
             objElement.style.visibility = "visible";
  				 }
  		}
    }