function checkVer() {
var appVer, ieLoc;

appVer = window.navigator.userAgent;
ieLoc = appVer.indexOf("MSIE");

if (ieLoc > 0)
//Internet Explorer
return parseInt(appVer.substring(ieLoc+5, appVer.indexOf(".", ieLoc)));
else
return 0;
}

function navtable() {
if (checkVer() >= 4){
document.styleSheets(0).addRule("div.invis", "{display: none}");
stylestate();
makeImage();
}
else
return;
}

function makeImage(){
  styimage.innerHTML = "&nbsp;&nbsp;<span CLASS=\"cursor\" STYLE=\"cursor: hand\">[<img  src=\"../view.gif\" height=38 width=55 align=\"top\" border=0 title=\"Click here to change the appearance of the page.\" onclick=\"changestyle()\">]</span>"
  }

function changeNav(){
if (navText.className == "nav2")
navText.className = "nav1";
else
navText.className = "nav2";
navTexttwo.className = "nav3";
}

function changeNavtwo(){
if (navTexttwo.className == "nav3")
navTexttwo.className = "nav4";
else
navTexttwo.className = "nav3";
}