var isNav, isIE;

if(parseInt(navigator.appVersion)>=4)
 {
   if(navigator.appName == "Netscape")
     isNav=true;
   else
     isIE=true;
 }

if(isNav || isIE)
 {
   var dv1 = isNav ? "document." : "document.all.";
   var dv2 = isNav ? "." : ".style.";

   var moveTOP = isNav ? "top" : "pixelTop";
   var moveLEFT = isNav ? "left" : "pixelLeft";
 }

var leave; 
var tbl=780; 
var mov; 
var i; 
var cwd; 


function res() 
{ 
 if(isIE)  
 { 
  cwd = document.body.clientWidth; 

 if(cwd<=tbl)
    leave=0;
  else
    leave=(parseInt(cwd-tbl))/2;

      mov=leave; 
      eval(dv1+'menu1'+dv2+moveLEFT+'='+mov+';'); 
      eval(dv1+'menu2'+dv2+moveLEFT+'='+mov+';'); 
      eval(dv1+'menu3'+dv2+moveLEFT+'='+mov+';'); 

 }


if(isNav)
  {
  cwd = window.innerWidth; 

 if(cwd<=780)
    leave=0;
  else
  leave=(parseInt(cwd)-tbl)/2; 

      mov=leave; 
      eval(dv1+'menu1'+dv2+moveLEFT+'='+mov+';'); 
      eval(dv1+'menu2'+dv2+moveLEFT+'='+mov+';'); 
      eval(dv1+'menu3'+dv2+moveLEFT+'='+mov+';'); 

  }
} 


var m;

function showmenu(m)
{
  for(i=1; i<4; i++)
    {
      eval(dv1+'menu'+i+dv2+'visibility="hidden";');
    }


      eval(dv1+'menu'+m+dv2+'visibility="visible";');
}




function hidemenu()
{
  for(i=1; i<4; i++)
    {
      eval(dv1+'menu'+i+dv2+'visibility="hidden";');
    }
}




function go()
{
}