var menuNo = 5;

function hideAllMenu()
{
	for ( i = 1; i<= menuNo; i++ )
		hideMenu( i );
}

function hideMenu( i )
{
	var name = "menu" + i;
	document.getElementById(name).style.display = "none";
}

function showMenu( i )
{
	hideAllMenu();
	var name = "menu" + i;
	document.getElementById("menu"+i).style.display = "block";
}

function ShowImage(img){
  Img1= new Image();
  Img1.src=(img);
  Control(img);
}

function Control(img){
  if((Img1.width!=0)&&(Img1.height!=0)){
    viewImg(img);
  }
  else{
    Func1="Control('"+img+"')";
    Interval=setTimeout(Func1,20);
  }
}
function viewImg(img){
  Wid=Img1.width+20;
  Len=Img1.height+20;
  Size="width="+Wid+",height="+Len;
  CurImg=window.open(img,"",Size);
}