function showIntro(objID)
{
	if (document.getElementById(objID).style.display == "none") {
		document.getElementById(objID).style.display = "";
	}else{
		document.getElementById(objID).style.display = "none";
	}
}

<!-- Begin
	var checkflag = "false";
	function check(field) {
		if (checkflag == "false") {
			for (i = 0; i < field.length; i++) {
			field[i].checked = true;}
			checkflag = "true";
			return "false"; }
		else {
			for (i = 0; i < field.length; i++) {
			field[i].checked = false; }
			checkflag = "false";
			return "true"; }
	}
//  End -->

<!--
function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}
//-->