var nrNav = 0;
var oldnrNav = 0;
var maxbuttonsNav = 10;

var nav = new Array(maxbuttonsNav);
var navOver = new Array(maxbuttonsNav);
var navClicked = new Array(maxbuttonsNav);
var navClickedOver = new Array(maxbuttonsNav);
var navVisited = new Array();

for (k=0; k < maxbuttonsNav; k++) {
  nav[k] = new Image(); 
  nav[k].src = "files/core/layout/images/navi/0"+k+".gif";
  
  navOver[k] = new Image(); 
  navOver[k].src = "files/core/layout/images/navi/0"+k+"_active.gif";
  
  navClicked[k] = new Image(); 
  navClicked[k].src = "files/core/layout/images/navi/0"+k+".gif";
  
  navClickedOver[k] = new Image(); 
  navClickedOver[k].src = "files/core/layout/images/navi/0"+k+"_active.gif";
  
  navVisited[k] = new Image(); 
  navVisited[k].src = "files/core/layout/images/navi/0"+k+".gif";
}

function rolloverNav(nrNav) 
{ 
	document['navigation'+nrNav].src = navOver[nrNav].src;
}

function rolloutNav(nrNav) 
{ 
	document['navigation'+nrNav].src = nav[nrNav].src;
}