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));
var offsetX = 0;
var offsetY = 18;
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(img,pos)
{
  if(toolTip.arguments.length < 1)
  {
    if(is_nav4)
        toolTipSTYLE.visibility = "hidden";
    else
        toolTipSTYLE.display = "none";
  }
  else
  {
    if(pos=="R"){
       offsetX=-100;
    }else{
       offsetX=0;
    }   
    var content = '<TABLE WIDTH="104" BORDER="0" CELLSPACING="0" CELLPADDING="0" HEIGHT="70"><TR><TD style="background-color: #000000; border-top: 1px solid #AEE236; border-left: 1px solid #AEE236; border-right: 1px solid #AEE236; border-bottom: 1px solid #AEE236;" BACKGROUND="' + img + '"><img src="imagenes/transparent.png" border="0"/></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'
    }
  }
}