function close_load(){
  	document.getElementById('a_load').style.visibility = 'hidden';
	if(document.getElementById('a_info')) {
		info = document.getElementById('a_info').style;

		info.top = document.body.scrollTop+ (document.body.clientHeight/2);//"50%";
		info.visibility = 'visible';
		setTimeout("close_info()", 3000);
	}
  }
  function close_info(){
	  document.getElementById('a_info').style.visibility = 'hidden';
  }
  function open_load(){
  	document.getElementById('a_load').style.visibility = 'visible';
  	scroll_load();  	
  }
  function scroll_load(){
  	s = document.getElementById('a_load').style;
	cil =  document.body.scrollTop+ (document.body.offsetHeight/2);
  	if (s.visibility != 'hidden'){
  		s.top = cil;//"50%";
  	}
	if(document.getElementById('a_info')) {
		st = document.getElementById('a_info').style;
		if (st.display != 'hidden'){
			st.top = cil;//"50%";
		}
	}
  }