function opencloseukr ()
{  
     if (document.all.ukr.style.display=='block')
 	{
 	document.all.ukr.style.display='none'; 
 	}
     else
 	{
         document.all.ukr.style.display='block'; 
 	}
}

function openclosecan ()
{  
     if (document.all.can.style.display=='block')
 	{
 	document.all.can.style.display='none'; 
 	}
     else
 	{
         document.all.can.style.display='block'; 
 	}
}

function openclosedan ()
{  
     if (document.all.dan.style.display=='block')
 	{
 	document.all.dan.style.display='none'; 
 	}
     else
 	{
         document.all.dan.style.display='block'; 
 	}
}