function menuOn(id, action) {
     var img = document.getElementById("mg" + id);
     if( action == 1 ) img.src = globalUrl + "images/menuButtons/mg" + id + "a.jpg";
     else img.src = globalUrl + "images/menuButtons/mg" + id + ".jpg";
     return;
}

function hMOut( buttonName ){
     document.getElementById('hM' + buttonName).src = globalUrl + 'images/menuButtons/hM' + buttonName + '.jpg';
}

var subMenuShadowInterval, subMenuRemShadowInterval;
var subMenuSlideStep = 100, subMenuLoadingStep = 100;
var nextArt = 'XRAY', newArt = '';

function subMenu( articleType ) {
     if(!document.getElementById('additionalData' + articleType)) return;
     document.getElementById('hM' + articleType).src = globalUrl + 'images/menuButtons/hM' + articleType + 'hover.jpg';

     if(articleType == nextArt) return;
     newArt = articleType;

          clearInterval(subMenuShadowInterval);
          clearInterval(subMenuRemShadowInterval);

     subMenuShadowInterval = setInterval("subMenuShadow()", 25);
}

function subMenuShadow() {
     var menuSD = document.getElementById('additionalData' + nextArt);
     if(subMenuSlideStep > 15){
          subMenuSlideStep -= 15;
          switch(navigator.appName){
               case 'Microsoft Internet Explorer':
                    menuSD.style.filter = "Alpha(Opacity=" + subMenuSlideStep + ")";
               break;
               default:
                    menuSD.style.opacity = subMenuSlideStep/100;
          }
     }else{
          clearInterval(subMenuShadowInterval);
          subMenuSlideStep = 0;
          switch(navigator.appName){
               case 'Microsoft Internet Explorer':
                    menuSD.style.filter = "Alpha(Opacity=0)";
               break;
               default:
                    menuSD.style.opacity = 0;
          }


               var nextData = new Array('XRAY', 'SPECIALS', 'XCOMM', 'TOPX', 'CDDVD');
               for(var i =0; i < 5; ++i ) document.getElementById('additionalData' + nextData[i]).style.display = 'none';
               var nSD = document.getElementById('additionalData' + newArt);
               switch(navigator.appName){
                    case 'Microsoft Internet Explorer':
                         nSD.style.filter = "Alpha(Opacity=0)";
                    break;
                    default:
                         nSD.style.opacity = 0;
               }
               nSD.style.display = 'block';

          subMenuRemShadowInterval = setInterval("subMenuRemShadow()", 25);
     }
}


function subMenuRemShadow() {
     var menuSD = document.getElementById('additionalData' + newArt);
     if(subMenuSlideStep < 85){
          subMenuSlideStep += 15;
          switch(navigator.appName){
               case 'Microsoft Internet Explorer':
                    menuSD.style.filter = "Alpha(Opacity=" + subMenuSlideStep + ")";
               break;
               default:
                    menuSD.style.opacity = subMenuSlideStep/100;
          }
     }else{
          clearInterval(subMenuRemShadowInterval);
          subMenuSlideStep = 100;

          switch(navigator.appName){
               case 'Microsoft Internet Explorer':
                    menuSD.style.filter = "Alpha(Opacity=100)";
               break;
               default:
                    menuSD.style.opacity = 1;
          }

          nextArt = newArt;
     }
}