//browser detection
  var agt=navigator.userAgent.toLowerCase();
  var is_major = parseInt(navigator.appVersion);
  var is_minor = parseFloat(navigator.appVersion);
  var is_nav  = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1)
                && (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1)
                && (agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1));
  var is_nav4 = (is_nav && (is_major == 4));
  var is_nav6 = (is_nav && (is_major == 5));
  var is_nav6up = (is_nav && (is_major >= 5));
  var is_ie     = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));

//tooltip Position
  var offsetX = 10;
  var offsetY = 15;
  var opacity = 100;
  var toolTipSTYLE;
  
function initToolTips(){
  if(document.getElementById){
       toolTipSTYLE = document.getElementById("toolTipLayer").style;
  }
  if(is_ie || is_nav6up) {
       toolTipSTYLE.visibility = "visible";
       toolTipSTYLE.display = "none";
       document.onmousemove = moveToMousePos;
  }
}

function moveToMousePos(e){
   if(!is_ie){
      x = e.pageX;
      y = e.pageY;
   }else{
      x = event.x + document.body.scrollLeft;
      y = event.y + document.body.scrollTop;
   }
  
    toolTipSTYLE.left = x + offsetX+'px';
    toolTipSTYLE.top = y + offsetY+'px';
    return true;
}
  
 
function toolTip(msg, fg, bg){
    if(toolTip.arguments.length < 1){ // if no arguments are passed then hide the tootip 
       if(is_nav4)
          toolTipSTYLE.visibility = "hidden";
       else
          toolTipSTYLE.display = "none";
    }
    else { // show
       if(!fg) fg = "#CCCCCC";
       if(!bg) bg = "#ffffff";
       var content = '<table border="0"  cellspacing="0" cellpadding="0" class="toolTip"><tr><td bgcolor="' + fg + '">' +
                                    '<table border="0" width=150 cellspacing="1" cellpadding="5"<tr><td align=center bgcolor="' + bg + '">'+
                                    '<font class=vihjetext >' + msg +
                                    '</font></td></tr></table>'+
                                    '</td></tr></table>';
       if(is_nav4){
          toolTipSTYLE.document.write(content);
          toolTipSTYLE.document.close();
          toolTipSTYLE.visibility = "visible";
       }
       else if(is_ie || is_nav6up) {
          document.getElementById("toolTipLayer").innerHTML = content;
          toolTipSTYLE.display='block'
       }
    }
}