HM_DOM = (document.getElementById) ? true : false;
HM_NS4 = (document.layers) ? true : false;
HM_NS4old = (HM_NS4 && (parseFloat(navigator.appVersion) < 4.02));
HM_IE = (document.all) ? true : false;
HM_IE4 = HM_IE && !HM_DOM;
HM_Mac = (navigator.appVersion.indexOf("Mac") != -1);
HM_IE4M = HM_IE4 && HM_Mac;
HM_IsMenu = (HM_DOM || (HM_NS4 && !HM_NS4old) || (HM_IE && !HM_IE4M));

window.onError=errHandler;

function errHandler(message, url, line){
  return true;
}

var extra;      // for vertical alignment
var x  = 185;        // for mouse location x
var y  = 401;        // for mouse location y

function tton(msg,e){
  
  if (navigator.appVersion.indexOf("MSIE 5")>-1){ // adds extra spaces for vertical height
    extra=document.body.scrollTop;
  }
  else{
    extra=0;
  }  

  if (document.layers){ // if using netscape
    document.layers['linkex'].document.open();
  	document.layers['linkex'].document.writeln(msg);
  	document.layers['linkex'].document.close();
  	document.layers['linkex'].left = x;
  	document.layers['linkex'].top = y;
  	document.layers['linkex'].visibility = "show";
  	document.layers['linkex'].bgColor="#FFFFFF";	
  }
  
  else if (document.all){ // if using ie
   	linkex.innerHTML = msg;
    linkex.style.left = x;
  	linkex.style.top = y;           
  	linkex.style.width = "195";
  	linkex.style.visibility = "visible";
  	linkex.style.backgroundColor = "#FFFFFF";
	linkex.style.borderColor = "#FFFFFF";
  }
   
  else if (document.getElementById){ // if using netscape6
  	document.getElementById('linkex').innerHTML=msg;
  	document.getElementById('linkex').style.left = x;
  	document.getElementById('linkex').style.top = y;       
  	document.getElementById('linkex').style.width = "195";  
  	document.getElementById('linkex').style.visibility = "visible";
  	document.getElementById('linkex').style.backgroundColor = "#FFFFFF";
  }
}
  
function ttoff(){ // hide the tool tip
  if (document.layers){ // if using netscape
    document.layers['linkex'].visibility="hide";	
  }
  else if (document.all){ // if using ie
    linkex.style.visibility="hidden";
  }
  
  else if(document.getElementById){ // if using netscape6
  	document.getElementById('linkex').style.visibility="hidden";
  }
}