//detect browser
var FIREFOX=navigator.userAgent.toLowerCase().indexOf("firefox")!=-1;
var EXPLORER=navigator.userAgent.toLowerCase().indexOf("ie")!=-1;
var NN=navigator.userAgent.toLowerCase().indexOf("netscape")!=-1;
var OPERA=navigator.userAgent.toLowerCase().indexOf("opera")!=-1;
var SAFARI=navigator.userAgent.toLowerCase().indexOf("safari")!=-1;



indmenu=0;
x0 = 0;
x1 = 0;
y1 = 104;
y2 = 219;
y3 = 127;
menuOver = false;

resetMenu();

function resetMenu() 
{
  for(i=1; i<=6; i++) {
    if(gGetObject('menu'+i)) {
      gSetPixelLeft('menu'+i, x0-1);
      gSetPixelTop('menu'+i, y1);
    }  
  }
}

function refreshCoordinates() {	

	
	clwidth = gGetClientWidth();
  if(NN || FIREFOX)
  	clwidth = clwidth - 1; 
	else if(EXPLORER){
		if(document.body.offsetWidth == document.body.clientWidth){
			clwidth = clwidth - 17;		
		}
	}
  	
  x0 = (clwidth-735)/2;
 
  if(x0 < 0) x0 = 12;
  x1 = x0+610;
}

function refreshPage() {
  refreshCoordinates();
  if(gGetObject('menuFront')) 	gSetPixelPos('menuFront', x0, y1);
  if(gGetObject('menuBack')) 	  gSetPixelPos('menuBack', x0, y1);
  if(gGetObject('menuWhiteLine')) 	  gSetPixelPos('menuWhiteLine', x0, y1+23);
}

function onMenuOut(e) {
	if(e && e.clientY && e.clientX && (e.clientY < y1 || e.clientY > y2 || e.clientX < x0 || e.clientX > x1))
		deselect();
}
function deselect() {
	if(menuOver) selectMenu(0);
	if(indmenu!=0){
		gSetVisibility('menuLine'+indmenu, 0);
	}
}

function selectMenu(which) {
  if(which == 0) menuOver = false;
  else menuOver = true;

  resetMenu();
  
  for(i=1; i<=6; i++) {
    if(i == which)
    {
      gSetVisibility('menuFront'+i, 0);
      if(gGetObject('menu'+i)){
      	gSetPixelLeft('menu'+i, x0);
      	gSetPixelTop('menu'+i, y3);
      }
     	gSetVisibility('menuLine'+i, 0);     	
    }
    else {
    	gSetVisibility('menuFront'+i, 1);
    	if(gGetObject('menu'+i)){
      	gSetPixelLeft('menu'+i, -1050);
      	gSetPixelTop('menu'+i, -1050);
      }
   		gSetVisibility('menuLine'+i, 1);
   	} 
  }
}

	function cambiaImmagine(id,pathImg)
	{
			if (!SAFARI)
			{
				eval("freccia"+id+".src='"+pathImg+"'");
		  }
	}