function clearTxt(fld){
	if(fld.value=='Search') // Checks for defaults entered by script to avoid wiping user input
	fld.value = ""
} 



function searchDefaults(){
	
	srch=document.getElementById('keyword').value

		if (srch == "") 
		{
		  document.getElementById('keyword').value = 'Search';
		}
}

var browserType;

if (document.layers) {browserType = "nn4"}
if (document.all) {browserType = "ie"}
if (window.navigator.userAgent.toLowerCase().match("gecko")) {
 browserType= "gecko"
}

function overview() {
  if (browserType == "gecko" )
     document.poppedLayer = 
         eval('document.getElementById("biography")');
  else if (browserType == "ie")
     document.poppedLayer = 
        eval('document.getElementById("biography")');
  else
     document.poppedLayer =   
        eval('document.layers["biography"]');
  document.poppedLayer.style.display = "none";
  document.getElementById("publications").style.display ="none";
  document.getElementById("projects").style.display ="none";
  document.getElementById("overview").style.display ="inline";
  document.getElementById("over").style.fontWeight ="bold";
  document.getElementById("pubs").style.fontWeight ="normal";
  document.getElementById("proj").style.fontWeight ="normal";
  document.getElementById("biog").style.fontWeight ="normal";
}

function publications() {
  if (browserType == "gecko" )
     document.poppedLayer = 
         eval('document.getElementById("overview")');
  else if (browserType == "ie")
     document.poppedLayer = 
        eval('document.getElementById("overview")');
  else
     document.poppedLayer = 
         eval('document.layers["overview"]');
  document.poppedLayer.style.display = "none";
  document.getElementById("publications").style.display ="inline";
  document.getElementById("projects").style.display ="none";
  document.getElementById("biography").style.display ="none";
  document.getElementById("pubs").style.fontWeight ="bold";
  document.getElementById("over").style.fontWeight ="normal";
  document.getElementById("proj").style.fontWeight ="normal";
  document.getElementById("biog").style.fontWeight ="normal";
}

function projects() {
  if (browserType == "gecko" )
     document.poppedLayer = 
         eval('document.getElementById("overview")');
  else if (browserType == "ie")
     document.poppedLayer = 
        eval('document.getElementById("overview")');
  else
     document.poppedLayer = 
         eval('document.layers["overview"]');
  document.poppedLayer.style.display = "none";
  document.getElementById("publications").style.display ="none";
  document.getElementById("projects").style.display ="inline";
  document.getElementById("biography").style.display ="none";
  document.getElementById("proj").style.fontWeight ="bold";
  document.getElementById("pubs").style.fontWeight ="normal";
  document.getElementById("over").style.fontWeight ="normal";
  document.getElementById("biog").style.fontWeight ="normal";
}

function biography() {
  if (browserType == "gecko" )
     document.poppedLayer = 
         eval('document.getElementById("overview")');
  else if (browserType == "ie")
     document.poppedLayer = 
        eval('document.getElementById("overview")');
  else
     document.poppedLayer = 
         eval('document.layers["overview"]');
  document.poppedLayer.style.display = "none";
  document.getElementById("publications").style.display ="none";
  document.getElementById("projects").style.display ="none";
  document.getElementById("biography").style.display ="inline";
  document.getElementById("biog").style.fontWeight ="bold";
  document.getElementById("pubs").style.fontWeight ="normal";
  document.getElementById("proj").style.fontWeight ="normal";
  document.getElementById("over").style.fontWeight ="normal";
}

//-->