function  info(ident)
   {
	   document.getElementById("portfolio").style.display = 'none'
	   document.getElementById("uslugi").style.display = 'none'
	   document.getElementById("napravl").style.display = 'none'
	   document.getElementById("contact").style.display = 'none'
	   
   if(document.getElementById(ident).style.display == 'block')
   {
   document.getElementById(ident).style.display = 'none'
   }
        else 
               {
                  document.getElementById(ident).style.display = 'block'
                  }
   }