var old_id = null;
	
function switchChild(id)
{	
	child  = document.getElementById('child_'+id);
	//parent = document.getElementById('parent_'+id);

	if( child.style.display == 'block' )
	{
		child.style.display 	= "none" ;
		//parent.style.display 	= "block" ;
		
		old_id = null;
	}
	else
	{
		child.style.display 	= "block";
		//parent.style.display 	= "none" ;
		
		if( old_id != null )
		{
			old_child 	= document.getElementById('child_'+old_id);
			//old_parent = document.getElementById('parent_'+old_id);
			
			old_child.style.display 	= "none" ;
			//old_parent.style.display 	= "block" ;
		}

		old_id = id;
	}
}

function switchChild2(id)
{	
	child  = document.getElementById('child2_'+id);
	//parent = document.getElementById('parent_'+id);

	if( child.style.display == 'block' )
	{
		child.style.display 	= "none" ;
		//parent.style.display 	= "block" ;
		
		
	}
	else
	{
		child.style.display 	= "block";
		//parent.style.display 	= "none" ;
		
		
	}
}

function reload_img()
{
   document.getElementById('code').src='engine/code.php?'+Math.random();
}