var browser = navigator.appName;
var version = parseFloat(navigator.appVersion);
var nom = navigator.appVersion;

if ((browser == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) < 4 )) {
   document.write("<LINK REL=stylesheet HREF=\"ie3b.css\" TYPE=\"text/css\">"); }
else if ((navigator.appVersion.indexOf("Mac") != -1)) {
   document.write("<LINK REL=stylesheet HREF=\"macb.css\" TYPE=\"text/css\">"); }
else if (browser == "Microsoft Internet Explorer") {
   document.write("<LINK REL=stylesheet HREF=\"ie3b.css\" TYPE=\"text/css\">"); }
else {
   document.write("<LINK REL=stylesheet HREF=\"winb.css\" TYPE=\"text/css\">"); }

function openmail(){
	ext=window.open('','external','width=380,height=440,scrollbars=no,resizable=yes');
	ext.focus();
}

function objectTagBuilder(dataUrl,altUrl,width,height){
	var objectString = "";

	//don't support NS or IE < 4
	if (((browser == "Microsoft Internet Explorer") || ( browser == "Netscape" )) && (version < 4)){
		objectString = "Your Browser does not support these 3D plug-ins.";

	//use different object tag for NS4.x which uses layers
	} else if( document.layers ){
		objectString = "<OBJECT DATA=\"" + dataUrl + "\" WIDTH=" + width + " HEIGHT=" + height + "><IMG SRC=\"" + altUrl + "\"></OBJECT>";

	//ie5.00.2919.6307CO 128 bit
	} else if( browser == "Microsoft Internet Explorer" && ( nom.substr(nom.indexOf('MSIE') + 5, 3) < 5.5 ) ){
		objectString = "<OBJECT type=\"model/vrml\" DATA=\"" + dataUrl + "\" WIDTH=" + width + " HEIGHT=" + height + ">" + altData + "</OBJECT>";

	//all other browsers get IE-style object tag
	} else {
		objectString = "<OBJECT type=\"model/vrml,x-world/x-vrml\" DATA=\"" + dataUrl + "\" WIDTH=" + width + " HEIGHT=" + height + "><PARAM NAME=\"src\" VALUE=\"" + dataUrl + "\"><IMG SRC=\"" + altUrl + "\"></OBJECT>";
	}
	document.write(objectString);
}