// JavaScript Document
var timer = null;
var menuHidden = -300;
var menuShow = 150;

if (document.getElementById) {
	stdBrowser=true
}
else {
	stdBrowser=false
}

if (document.images) {
	homebuttonUp = new Image
	homebuttonDown = new Image
	lessonbuttonUp = new Image
	lessonbuttonDown = new Image
	schoolbuttonUp = new Image
	schoolbuttonDown = new Image
	tourbuttonUp = new Image
	tourbuttonDown = new Image
	corpbuttonUp = new Image
	corpbuttonDown = new Image
	faqbuttonUp = new Image
	faqbuttonDown = new Image
	mapbuttonUp = new Image
	mapbuttonDown = new Image
	contactbuttonUp = new Image
	contactbuttonDown = new Image

	homebuttonUp.src = "../images/topmenu/homepage.gif"
	homebuttonDown.src = "../images/topmenu/homepage_down.gif"
	lessonbuttonUp.src = "../images/topmenu/lessons.gif"
	lessonbuttonDown.src = "../images/topmenu/lessons_down.gif"
	schoolbuttonUp.src = "../images/topmenu/schools.gif"
	schoolbuttonDown.src = "../images/topmenu/schools_down.gif"
	tourbuttonUp.src = "../images/topmenu/tours.gif"
	tourbuttonDown.src = "../images/topmenu/tours_down.gif"
	corpbuttonUp.src = "../images/topmenu/corporate.gif"
	corpbuttonDown.src = "../images/topmenu/corporate_down.gif"
	faqbuttonUp.src = "../images/topmenu/faqs.gif"
	faqbuttonDown.src = "../images/topmenu/faqs_down.gif"
	mapbuttonUp.src = "../images/topmenu/map.gif"
	mapbuttonDown.src = "../images/topmenu/map_down.gif"
	contactbuttonUp.src = "../images/topmenu/contact.gif"
	contactbuttonDown.src = "../images/topmenu/contact_down.gif"
}
else {
	homebuttonUp = ""
	homebuttonDown = ""
	lessonbuttonUp = ""
	lessonbuttonDown = ""
	schoolbuttonUp = ""
	schoolbuttonDown = ""
	tourbuttonUp = ""
	tourbuttonDown = ""
	corpbuttonUp = ""
	corpbuttonDown = ""
	faqbuttonUp = ""
	faqbuttonDown = ""
	mapbuttonUp = ""
	mapbuttonDown = ""
	contactbuttonUp = ""
	contactbuttonDown = ""
	
	document.homebutton = ""
	document.lessonbutton = ""
	document.schoolbutton = ""
	document.tourbutton = ""
	document.corpbutton = ""
	document.faqbutton = ""
	document.mapbutton = ""
	document.contactbutton = ""
}

function preLoadMenuImages() {
	if (document.getElementById) {
		stdBrowser=true
	}
	else {
		stdBrowser=false
	}
}

function showDownImg(button) {
  document[button].src = eval(button+"Down.src")
}
function showUpImg(button) {
  document[button].src = eval(button+"Up.src")
}

function clearMenus() {
	if (stdBrowser) {
    menuObj = document.getElementById('lessonsmenu').style;
    menuObj.top = menuHidden + "px";
    menuObj = document.getElementById('schoolsmenu').style;
    menuObj.top = menuHidden + "px";
    menuObj = document.getElementById('toursmenu').style;
    menuObj.top = menuHidden + "px";
		//add new pull down menus here
	}
	else {
	  menuObj = eval("document."+'lessonsmenu');
		menuObj.top = menuHidden;
	  menuObj = eval("document."+'schoolsmenu');
		menuObj.top = menuHidden;
	  menuObj = eval("document."+'toursmenu');
		menuObj.top = menuHidden;
		//add new pull down menus here
	}
}

function swapMenus(currElem,nextPos,button) {
	clearTimeout(timer);
	clearMenus();
	
	if (stdBrowser) {
		menuObj = document.getElementById(currElem).style
	}
	else {
		menuObj = eval("document."+currElem)
	}
	if (swapMenus.arguments.length == 1) {
		if (parseInt(menuObj.top) == menuShow) {
			nextPos = menuHidden
		}
		else {
			nextPos = menuShow
		}
	}
	if (stdBrowser) {
		menuObj.top = nextPos + "px"
	}
	else {
		menuObj.top = nextPos
	}
	
	if (nextPos == menuHidden) {
	  document[button].src = eval(button+"Up.src") }
	else {
	  document[button].src = eval(button+"Down.src") }
}

function hideMenus(pElem,nextPos,button) {
  document[button].src = eval(button+"Up.src")
	clearTimeout(timer);
	elem = pElem
	btn = button
	timer = setTimeout("swapMenus(elem,menuHidden,btn)",100);
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_validateForm() { //v4.0
  var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
  for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=MM_findObj(args[i]);
    if (val) { nm=val.name; if ((val=val.value)!="") {
      if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
        if (p<1 || p==(val.length-1)) errors+='- '+nm+' must contain an e-mail address.\n';
      } else if (test!='R') { num = parseFloat(val);
        if (isNaN(val)) errors+='- '+nm+' must contain a number.\n';
        if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
          min=test.substring(8,p); max=test.substring(p+1);
          if (num<min || max<num) errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';
    } } } else if (test.charAt(0) == 'R') errors += '- '+nm+' is required.\n'; }
  } if (errors) alert('The following error(s) occurred:\n'+errors);
  document.MM_returnValue = (errors == '');
}

// POP-UP WINDOWS

function popup1() {
  fbackWindow=window.open("popup_page1.php", "fbackWin", "scrollbars=yes,width=500,height=600")
}
function popup2() {
  fbackWindow=window.open("popup_page2.php", "fbackWin", "scrollbars=yes,width=500,height=600")
}
function popup3() {
  fbackWindow=window.open("popup_page3.php", "fbackWin", "scrollbars=yes,width=500,height=600")
}
function popup4() {
  fbackWindow=window.open("popup_page4.php", "fbackWin", "scrollbars=yes,width=500,height=600")
}
function popup5() {
  fbackWindow=window.open("popup_page5.php", "fbackWin", "scrollbars=yes,width=500,height=600")
}
function popup6() {
  fbackWindow=window.open("popup_page6.php", "fbackWin", "scrollbars=yes,width=500,height=600")
}