var ie4=document.all&&navigator.userAgent.indexOf("Opera")==-1;
var ns6=document.getElementById&&!document.all;
var ns4=document.layers;
var hider;
var pageHeight,pageWidth;
var iH,iW;

function getDimensions() {
   if (self.innerHeight) // all except Explorer
   {
           iW = self.innerWidth;
           iH = self.innerHeight;
   }
   else if (document.documentElement && document.documentElement.clientHeight)
           // Explorer 6 Strict Mode
   {
           iW = document.documentElement.clientWidth;
           iH = document.documentElement.clientHeight;
   }
   else if (document.body) // other Explorers
   {
           iW = document.body.clientWidth;
           iH = document.body.clientHeight;
   }
   var test1 = document.body.scrollHeight;
   var test2 = document.body.offsetHeight;
   if (test1 > test2) // all but Explorer Mac
   {
           pageHeight = document.body.scrollWidth;
           pageWidth = document.body.scrollHeight;
   }
   else // Explorer Mac;
        //would also work in Explorer 6 Strict, Mozilla and Safari
   {
           pageWidth = document.body.offsetWidth;
           pageHeight = document.body.offsetHeight;
   }
}
function switchColor(theField, color) {
  if ( typeof(theField.style) == 'undefined' ) {
            return false;
        }
  else {
         theField.style.backgroundColor=color;
        }
 }

function imageBox(sender) {
 var URLStr;
 URLStr = 'showimage.php?img='+sender.src;
 win = window.open(URLStr, 'imageBox', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbar=no,resizable=yes,copyhistory=yes,width=1,height=1,left=10px,top=10,screenX=10,screenY=10');
 win.focus();
}
function imageBoxUrl(url) {
 var URLStr;
 URLStr = 'showimage.php?img='+url;
 win = window.open(URLStr, 'imageBox', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbar=no,resizable=yes,copyhistory=yes,width=1,height=1,left=10px,top=10,screenX=10,screenY=10');
 win.focus();
}

function ScaleNPos(image) {
  var w;
  var h;
  var sh,sw;
  sh = screen.height;
  sw = screen.width;
  w = document.images[image].width
  h = document.images[image].height;
  self.resizeTo(w+40,h+90);
  pX = (sw-w)/2;
  pY = (sh-h)/2;
  self.moveTo(pX,pY);
  var iH,iW;
  if (self.innerHeight) // all except Explorer
  {
        iW = self.innerWidth;
        iH = self.innerHeight;
  }
  else if (document.documentElement && document.documentElement.clientHeight)
        // Explorer 6 Strict Mode
  {
        iW = document.documentElement.clientWidth;
        iH = document.documentElement.clientHeight;
  }
  else if (document.body) // other Explorers
  {
        iW = document.body.clientWidth;
        iH = document.body.clientHeight;
  }
  var foot=ie4? document.all.foot : ns6? document.getElementById("foot") : ns4? document.foot : ""
  posX = (iW-w)/2;
  posY = (iH-h)/2;
  posX2 = (iW-150)/2;
  posY2 = posY+h;
  if (document.getElementById) {
    document.images[image].style.left  = posX + "px";
    document.images[image].top = posY + "px";
    foot.style.left = posX2 +"px";
    foot.style.top = posY2 +"px";
  } else if (document.all) {
    document.images[image].left = posX;
    document.images[image].top = posY;
    foot.style.left = posX2;
    foot.style.top = posY2;
  }
}

function helpbox(e,text) {
//var hb=ie4? document.all.helpbox : ns6? document.getElementById("helpbox") : ns4? document.helpbox : "";
var hb = document.getElementById('helpbox');
  if(!e) {
     e = window.event;
  }
  var y;
  if (document.body.scrollTop) {
     y = document.body.scrollTop;
  }
  else {
     y = window.pageYOffset;
  }
  var posX = e.clientX;
  if(!y) {
     var posY = e.clientY;
  }
  else {
       var posY = e.clientY+y;
  }

  if(ie4) {
   posY = posY+10;
   posX = posX+10;
  }
  hb.innerHTML = text;
/*
  if (document.getElementById) {
    hb.style['left']= posX + 'px';
    hb.style['top'] = posY + 'px';
  } else if (document.all) {
    hb.style['left'] = posX;
    hb.style['top'] = posY;
  }
*/
    hb.style['left']= posX + 'px';
    hb.style['top'] = posY + 'px';
   hb.style['visibility']='visible';
}

function hidehelp() {
  var hb=ie4? document.all.helpbox : ns6? document.getElementById("helpbox") : ns4? document.helpbox : "";
  hb.style.visibility="hidden";
}

function showmenu(menulist, sender) {
  var sub=ie4? document.all.submenu : ns6? document.getElementById("submenu") : ns4? document.submenu : ""
  posX = sender.style.left.substr(0,sender.style.left.indexOf("p"));
  posY = sender.style.top.substr(0,sender.style.top.indexOf("p"))+sender.style.height;
  var m = ie4? 18 : 19;
  sub.innerHTML = linkset[menulist];
  if (document.getElementById) {
    sub.style.left  = posX + "px";
    sub.style.top = posY+m + "px";
  } else if (document.all) {
    sub.style.left = posX;
    sub.style.top = posY+m;
  }
  sub.style.visibility="visible";
 }


function hidemenu() {
  var sub=ie4? document.all.submenu : ns6? document.getElementById("submenu") : ns4? document.submenu : ""
  sub.style.visibility="hidden";
 }

function delayhidemenu() {
  hider = window.setTimeout("hidemenu()",500);
}

function clearhide() {
 window.clearTimeout(hider);
}

hider = window.setTimeout("hidemenu()",2000);