/* absolte links, sonst funktioniert das scipt nicht!!! */


function PreloadImages(length, path, type) {
                               for(var i = 1; i<=length; i++) {
                                   this[i]= new Image()
                                   this[i].src= path + i + type
                               }
                               return this
                           }

                           over=new PreloadImages(7,'images/nav/over','.gif')
                           nav=new PreloadImages(7,'images/nav/nav','.gif')

                           function rollOn(num){
                           if(document.images)
                               eval('document.images["nav'+num+'"].src='+'over[num].src')
                           }
                           function rollOff(num){
                           if(document.images)
                               eval('document.images["nav'+num+'"].src='
                                       +'nav[num].src')
                           }