var menuOpen = false;
 var imgLeft   = new Image(); imgLeft.src   = "/graphics/menu-left.png";
 var imgRight  = new Image(); imgRight.src  = "/graphics/menu-right.png";
 var imgCenter = new Image(); imgCenter.src = "/graphics/menu-separator.png";
 var imgBgOut  = new Image(); imgBgOut.src  = "/graphics/menubg.png";
 var imgBgOver = new Image(); imgBgOver.src = "/graphics/menubg2.gif";

 function mouseOver(obj,nr)
 {
     obj.className = "commonButtonOver";
     obj.background = imgBgOver.src;

     imgId = "img" + nr;
     document.getElementById(imgId).src = imgRight.src;

     if(nr > 1)
     {
         imgId = "img" + String(nr-1);
         document.getElementById(imgId).src = imgLeft.src;
     }

     return true;
 };

 function mouseOut(obj,nr)
 {
     obj.className = "commonButtonOut";
     obj.background = imgBgOut.src;

     imgId = "img" + nr;
     document.getElementById(imgId).src = imgCenter.src;

     if(nr > 1)
     {
         imgId = "img" + String(nr-1);
         document.getElementById(imgId).src = imgCenter.src;
     }

     return true;
 };

 function openMenu(oLink)
 {
     location.href = oLink;
 };

 function checkForm()
 {
     if(document.googleform.myurl.value.length < 8)
     {
         alert("Du skal indtaste en URL!");
         return false;
     }
     else if(document.googleform.wordlist.value.length < 3)
     {
         alert("Du skal indtaste mindts ét søgeord!");
         return false;
     }
     else if(document.googleform.company.value.length < 3)
     {
         alert("Du skal indtaste virksomhedsnavn!");
         return false;
     }
     else if(document.googleform.navn.value.length < 3)
     {
         alert("Du skal indtaste dit navn!");
         return false;
     }
     else if(document.googleform.email.value.length < 3)
     {
         alert("Du skal indtaste en e-mail adresse!");
         return false;
     }
     else
     {
         return true;
     }
 };