function changetheprod() {
if (document.getElementById("catlinks").style.display!="block") {
document.getElementById("catlinks").style.display="block";
} else if (document.getElementById("catlinks").style.display=="block") {
document.getElementById("catlinks").style.display="none";
}
}  	  	  
var detect = navigator.userAgent.toLowerCase();
var OS,browser,version,total,thestring;
if (checkIt('msie')) {
if (detect.charAt(place + thestring.length) < 7) {
	document.write('<link href="explorer.css" rel="stylesheet" type="text/css">');
} else if (detect.charAt(place + thestring.length) >= 8) {
	document.write('<link href="ie8.css" rel="stylesheet" type="text/css">');
}
} else if (checkIt('chrome')) {
	document.write('<link href="chrome.css" rel="stylesheet" type="text/css">');
} else {
	document.write('<link href="firefox.css" rel="stylesheet" type="text/css">');
}
function checkIt(string)
{
	place = detect.indexOf(string) + 1;
	thestring = string;
	return place;
}