function control_menu1()
{
	//alert("fdfdfdf");
	r = document.getElementById('Layer1');
	
if (r.style.display=="none")
   {r.style.display="block";
    r = document.getElementById('Layer2');
    r.style.display="none";
	r = document.getElementById('Layer3');
    r.style.display="none"; 
    r = document.getElementById('Layer4');
    r.style.display="none";
	}
	
else{
	  r.style.display="none";
      r = document.getElementById('Layer2');
      r.style.display="none"; 
      r = document.getElementById('Layer3');
      r.style.display="none"; 
      r = document.getElementById('Layer4');
      r.style.display="none"; 


    }
}


function control_menu2()
{
	//alert("fdfdfdf");
	r = document.getElementById('Layer2');
	
if (r.style.display=="none")
   {r.style.display="block";
    r = document.getElementById('Layer1');
    r.style.display="none";
	r = document.getElementById('Layer3');
    r.style.display="none"; 
    r = document.getElementById('Layer4');
    r.style.display="none";
	}
	
else{
	  r.style.display="none";
      r = document.getElementById('Layer1');
      r.style.display="none"; 
      r = document.getElementById('Layer3');
      r.style.display="none"; 
      r = document.getElementById('Layer4');
      r.style.display="none"; 


    }
}




function control_menu3()
{
	//alert("fdfdfdf");
	r = document.getElementById('Layer3');
	
if (r.style.display=="none")
   {r.style.display="block";
    r = document.getElementById('Layer1');
    r.style.display="none";
	r = document.getElementById('Layer2');
    r.style.display="none"; 
    r = document.getElementById('Layer4');
    r.style.display="none";
	}
	
else{
	  r.style.display="none";
      r = document.getElementById('Layer1');
      r.style.display="none"; 
      r = document.getElementById('Layer2');
      r.style.display="none"; 
      r = document.getElementById('Layer4');
      r.style.display="none"; 


    }
}

function menu_deactivator()
{
	//alert("fdfdfdf");
	r = document.getElementById('Layer3');
	r.style.display="none";
}


function viewPic(photo)
{
	//alert("fdfdfdf");
	r = document.getElementById('SwapPic');
	//alert(r);
	r.src=photo;
}

function openwindow()
{
	window.open("wholecretemap.jpg","mywindow","menubar=0,resizable=1,scrollbars=1,width=800,height=300");
}

function openwindow2(input)
{
	window.open(input,"mywindow","menubar=0,resizable=1,scrollbars=1,width=640,height=480");
}

// JavaScript Document