function hideMail(thisUser, thisDomain, thisTLD, thisOpt, thisStr, thisAttrib, thisSubj) {
	/*
	OPTIONS
	-------
	undefined or empty = link
	"nolink" = no link
	"linktext" = link text from parameter
	*/
	
	var strOut;	
	strOut = subChrs(thisUser + "@" + thisDomain + "." + thisTLD);
	
	if (typeof thisAttrib != "undefined") {
		if (thisAttrib != "") {
			thisAttrib = " " + thisAttrib;
		}
	} else {
		thisAttrib = "";
	}
	if (typeof thisSubj != "undefined") {
		if (thisSubj != "") {
			thisSubj = "?" + thisSubj;
		}
	} else {
		thisSubj = "";
	}
	
	if (typeof thisOpt == "undefined" || thisOpt == "") {
		strOut = "<a href=\"mailto:" + strOut + thisSubj + "\"" + thisAttrib + ">" + strOut + "</a>";
	} else if (thisOpt == "linktext") {
		strOut = "<a href=\"mailto:" + strOut +  thisSubj + "\"" + thisAttrib + ">" + thisStr + "</a>";
	}
	document.write(strOut);
}

function subChrs(thisStr) {
	var strNew = "";
	for (var i = 0; i < thisStr.length; i++) {
		strNew += "&#" + thisStr.charCodeAt(i) + ";";
	}
	return strNew;
}



function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		invitation_over = newImage(BaseURL + "/navigation/06navimages/invitation_congress_over.gif");
		congress_new_over = newImage(BaseURL + "/navigation/06navimages/congress_new_over.gif");
		congress_over = newImage(BaseURL + "/navigation/06navimages/congress_over.gif");
		industry_over = newImage(BaseURL + "/navigation/06navimages/industry_over.gif");
		industry_ack_over = newImage(BaseURL + "/navigation/06navimages/industry_ack_over.gif");
		industry_opp_over = newImage(BaseURL + "/navigation/06navimages/industry_opp_over.gif");
		exhibitors_over = newImage(BaseURL + "/navigation/06navimages/exhibitors_over.gif");
		travelgrant_over = newImage(BaseURL + "/navigation/06navimages/travelgrant_over.gif");
		registration_over = newImage(BaseURL + "/navigation/06navimages/registration_over.gif");
		hotel_over = newImage(BaseURL + "/navigation/06navimages/hotel_over.gif");
		maps_over = newImage(BaseURL + "/navigation/06navimages/maps_over.gif");
		program_over = newImage(BaseURL + "/navigation/06navimages/program_over.gif");
		session_application_over = newImage(BaseURL + "/navigation/06navimages/session_application_over.gif");
		abstract_over = newImage(BaseURL + "/navigation/06navimages/abstract_over.gif");
		powerpoint_over = newImage(BaseURL + "/navigation/06navimages/powerpoint_over.gif");
		dates_over = newImage(BaseURL + "/navigation/06navimages/dates_over.gif");
		mailinglist_over = newImage(BaseURL + "/navigation/06navimages/mailinglist_over.gif");
		contact_over = newImage(BaseURL + "/navigation/06navimages/images/contact_over.gif");
		overview_over = newImage(BaseURL + "/navigation/06navimages/overview_over.gif");
		home_over = newImage(BaseURL + "/navigation/06navimages/home_over.gif");
		congresshome_over = newImage(BaseURL + "/navigation/06navimages/congresshome_over.gif");
		speaker_over = newImage(BaseURL + "/navigation/06navimages/speaker_over.gif");
		preloadFlag = true;
	}
}