function checknumber()
{
	var a = document.getElementById('number').value;
	if ( (a.length<3) || (a.length<3) )
	{
		alert('Введите надпись на номере от 3 до 8 символов.');
		return false;
	}
	else document.pform.submit();
}
function show_window(mode)
{
  switch(mode)
	{
	  case 1:
		  win("window");
		break;
		case 2:
		  win("window");
			uparan();
		break;
		case 3:
		  win("window2");
		break;
	}
}

function win(id)
{
  if(document.getElementById(id).style.display=="none" || (document.getElementById(id).style.display=='undefined'))
  {
   document.getElementById(id).style.display="block";
   if(id=="window")
   {
     document.getElementById("wincontent").style.display="block";
     document.getElementById("wincontent2").style.display="none";
   }
   else
   {
     document.getElementById("wincontent3").style.display="block";
     document.getElementById("wincontent4").style.display="none";
   }
  }
  else if(document.getElementById(id).style.display=="block")
  {
    document.getElementById(id).style.display="none";
  }
  else
  {
    document.getElementById(id).style.display="block";
	 if(id=="window")
     {
       document.getElementById("wincontent").style.display="block";
       document.getElementById("wincontent2").style.display="none";
     }
     else
     {
       document.getElementById("wincontent3").style.display="block";
       document.getElementById("wincontent4").style.display="none";
     }
  }
}

function uparan()
{
  document.getElementById("window").style.top="285px";
	document.getElementById("window").style.margin="0 0 0 -575px";
}

function showmes(id)
{
 if(id==1)
 {
 document.getElementById("wincontent").style.display="none";
 document.getElementById("wincontent2").style.display="block";
 }
 else
 {
   document.getElementById("wincontent3").style.display="none";
   document.getElementById("wincontent4").style.display="block";
 }
}