if (document.images) 
 {
   fr_1     = new Image();
   fr_1.src = "img/index/nav_fr_1.gif";
   fr_0     = new Image();
   fr_0.src = "img/index/nav_fr_0.gif";
   
   en_1     = new Image();
   en_1.src = "img/index/nav_en_1.gif";
   en_0     = new Image();
   en_0.src = "img/index/nav_en_0.gif";
   
   de_1     = new Image();
   de_1.src = "img/index/nav_de_1.gif";
   de_0     = new Image();
   de_0.src = "img/index/nav_de_0.gif";
   
   francais_1     = new Image();
   francais_1.src = "img/index/nav_fr_1.gif";
   francais_0     = new Image();
   francais_0.src = "img/index/nav_fr_0.gif";
   
   english_1     = new Image();
   english_1.src = "img/index/nav_en_1.gif";
   english_0     = new Image();
   english_0.src = "img/index/nav_en_0.gif";
   
   deutsch_1     = new Image();
   deutsch_1.src = "img/index/nav_de_1.gif";
   deutsch_0     = new Image();
   deutsch_0.src = "img/index/nav_de_0.gif";
	
	} 

 function Rollover(ImgName, ImgEtat)
 { 
   var i;
   if (document.images) 
   { 
     IsValide = eval("document." + ImgName); 
      
     if (!IsValide) 
     { 
       while(document.forms[i]) 
       { 
         FormName = document.forms[i++].name; 
         IsValideFormImg = eval("document." + FormName +"."+ ImgName); 
         if (IsValideFormImg)
         {
           eval("document." + FormName +"."+ ImgName + ".src = " + ImgName + "_" + ImgEtat + ".src"); 
         } 
       } 
     } 
     else
     {
       eval("document." + ImgName + ".src = " + ImgName + "_" + ImgEtat + ".src");
     }
   } 
 }