envLoaded = false;
function envInit(){
	envLoaded = true;
} // end func envInit()

function switchPic(bName,whatAction){
	if (envLoaded) {
//		alert("switch pic initiated, envLoaded=" + envLoaded + " , bName=" + bName + ", whatAction=" + whatAction);
		buttonName = bName + "_" + whatAction;
		document.images[bName].src = eval(buttonName + ".src");
		}
	}

function show_reg(whichLayer) {
	document.getElementById("reginfo").style.display = "none";
	if (document.getElementById) {
		// this is the way the standards work
		document.getElementById("reginfo").style.display = "none";
		document.getElementById("regform").style.display = "none";
		var style2 = document.getElementById(whichLayer).style;

	} else if (document.all) {
		// this is the way old msie versions work
		document.all["reginfo"].style.display = "none";
		document.all["regform"].style.display = "none";
		var style2 = document.all[whichLayer].style;

	} else if (document.layers) {
		// this is the way nn4 works
		document.layers["reginfo"].style.display = "none";
		document.layers["regform"].style.display = "none";
		var style2 = document.layers[whichLayer].style;
	}

	style2.display = "block";
}

function show_day(whichLayer) {
	document.getElementById("friday").style.display = "none";
	if (document.getElementById) {
		// this is the way the standards work
		document.getElementById("friday").style.display = "none";
		document.getElementById("saturday").style.display = "none";
		document.getElementById("sunday").style.display = "none";
		document.getElementById("add_info").style.display = "none";
		var style2 = document.getElementById(whichLayer).style;

	} else if (document.all) {
		// this is the way old msie versions work
		document.all["friday"].style.display = "none";
		document.all["saturday"].style.display = "none";
		document.all["sunday"].style.display = "none";
		document.all["add_info"].style.display = "none";
		var style2 = document.all[whichLayer].style;

	} else if (document.layers) {
		// this is the way nn4 works
		document.layers["friday"].style.display = "none";
		document.layers["saturday"].style.display = "none";
		document.layers["sunday"].style.display = "none";
		document.layers["add_info"].style.display = "none";
		var style2 = document.layers[whichLayer].style;
	}

	style2.display = "block";
}

if(window.attachEvent)
window.attachEvent("onload",setListeners);

function setListeners(){
inputList = document.getElementsByTagName("INPUT");
for(i=0; i<inputList.length; i++){
  inputList[i].attachEvent("onpropertychange",restoreStyles);
  inputList[i].style.backgroundColor = "";
}
selectList = document.getElementsByTagName("SELECT");
for(i=0;i<selectList.length;i++){
  selectList[i].attachEvent("onpropertychange",restoreStyles);
  selectList[i].style.backgroundColor = "";
}
}

function restoreStyles(){
if(event.srcElement.style.backgroundColor != "")
  event.srcElement.style.backgroundColor = "";
}

function align_sunday_choices (form,from) {
	if (from == "331") {
		if (form.elements["spref[18][1]"].selectedIndex > 0 &&
			(form.elements["spref[18][1]"].value == "211" || form.elements["spref[18][1]"].value == "213")
			) {
			form.elements["spref[19][1]"].options[form.elements["spref[18][1]"].selectedIndex].selected = true;
		}
		if (form.elements["spref[18][2]"].selectedIndex > 0 &&
			(form.elements["spref[18][2]"].value == "211" || form.elements["spref[18][2]"].value == "213")
			) {
			form.elements["spref[19][2]"].options[form.elements["spref[18][2]"].selectedIndex].selected = true;
		}
		if (form.elements["spref[18][3]"].selectedIndex > 0 &&
			(form.elements["spref[18][3]"].value == "211" || form.elements["spref[18][3]"].value == "213")
			) {
			form.elements["spref[19][3]"].options[form.elements["spref[18][3]"].selectedIndex].selected = true;
		}
	} else {
		if (form.elements["spref[19][1]"].selectedIndex > 0 &&
			(form.elements["spref[19][1]"].value == "221" || form.elements["spref[19][1]"].value == "223")
			) {
			form.elements["spref[18][1]"].options[form.elements["spref[19][1]"].selectedIndex].selected = true;
		}
		if (form.elements["spref[19][2]"].selectedIndex > 0 &&
			(form.elements["spref[19][2]"].value == "221" || form.elements["spref[19][2]"].value == "223")
			) {
			form.elements["spref[18][2]"].options[form.elements["spref[19][2]"].selectedIndex].selected = true;
		}
		if (form.elements["spref[19][3]"].selectedIndex > 0 &&
			(form.elements["spref[19][3]"].value == "221" || form.elements["spref[19][3]"].value == "223")
			) {
			form.elements["spref[18][3]"].options[form.elements["spref[19][3]"].selectedIndex].selected = true;
		}
	}
}

function check_form(form) {
	var ok = true;
	var choices_made = true;
	var errors = "";
	var regtype = "";
	var what_sec = "1";

	//var what_sec = "";
	//var what_type = "";
	
	/*if (what_sec == "2") {
		if (form.elements["spref[12][1]"].value == form.elements["spref[12][2]"].value
			|| form.elements["spref[12][1]"].value == form.elements["spref[12][3]"].value
			|| form.elements["spref[12][2]"].value == form.elements["spref[12][3]"].value) {
			ok = false;
			choices_made = false;
		}
	
		if (form.elements["spref[13][1]"].value == form.elements["spref[13][2]"].value
			|| form.elements["spref[13][1]"].value == form.elements["spref[13][3]"].value
			|| form.elements["spref[13][2]"].value == form.elements["spref[13][3]"].value) {
			ok = false;
			choices_made = false;
		}
	
		if (form.elements["spref[15][1]"].value == form.elements["spref[15][2]"].value
			|| form.elements["spref[15][1]"].value == form.elements["spref[15][3]"].value
			|| form.elements["spref[15][2]"].value == form.elements["spref[15][3]"].value) {
			ok = false;
			choices_made = false;
		}
	
		if (form.elements["spref[16][1]"].value == form.elements["spref[16][2]"].value
			|| form.elements["spref[16][1]"].value == form.elements["spref[16][3]"].value
			|| form.elements["spref[16][2]"].value == form.elements["spref[16][3]"].value) {
			ok = false;
			choices_made = false;
		}
	
		if (what_type == "full") {
	
			if (form.elements["spref[18][1]"].value == form.elements["spref[18][2]"].value
				|| form.elements["spref[18][1]"].value == form.elements["spref[18][3]"].value
				|| form.elements["spref[18][2]"].value == form.elements["spref[18][3]"].value) {
				ok = false;
				choices_made = false;
			}
		
			if (form.elements["spref[19][1]"].value == form.elements["spref[19][2]"].value
				|| form.elements["spref[19][1]"].value == form.elements["spref[19][3]"].value
				|| form.elements["spref[19][2]"].value == form.elements["spref[19][3]"].value) {
				ok = false;
				choices_made = false;
			}
	
		}
	}
	
	if (choices_made == false) {
		errors += "Your session choices are not valid. Please make sure you have picked different sessions for each 1st, 2nd, and 3rd timeblock.\n\n";
	}*/
	
	if (what_sec == "1") {
		if (form.elements["firstName"].value == "") { ok = false; errors +="First Name appears to be missing.\n"; }
		if (form.elements["lastName"].value == "") { ok = false; errors +="Last Name appears to be missing.\n"; }
		if (form.elements["address"].value == "") { ok = false; errors +="Address appears to be missing.\n"; }
		if (form.elements["city"].value == "") { ok = false; errors +="City appears to be missing.\n"; }
		if (form.elements["province"].value == "") { ok = false; errors +="Province appears to be missing.\n"; }
		if (form.elements["postalCode"].value == "") { ok = false; errors +="Postal Code appears to be missing.\n"; }
		if (form.elements["workphone"].value == "") { ok = false; errors +="Work Phone appears to be missing.\n"; }
		if (form.elements["homephone"].value == "") { ok = false; errors +="Home Phone appears to be missing.\n"; }
		if (form.elements["emailAddress"].value == "") { ok = false; errors +="Email Address appears to be missing.\n"; }
		if (form.elements["checkAgree"].checked == false) { ok = false; errors +="You need to agree to the Waiver of Liability.\n"; }
		regtype = getSelectedRadio(form.elements["delegate"])
		if (regtype == "-1") { ok = false; errors +="You need to select whether you are attending the Conference (with optional Pre or Post Conference sessions) or only the Pre or Post Conference sessions.\n"; }

	}
	if (ok == false) {
		alert ("You haven't filled out the form completely.\n\n" + errors);
	} else {
//		alert ("Good form, submit it!");
		//form.submit();
	}
}

function getSelectedRadio(buttonGroup) {
   // returns the array number of the selected radio button or -1 if no button is selected
   if (buttonGroup[0]) { // if the button group is an array (one button is not an array)
      for (var i=0; i<buttonGroup.length; i++) {
         if (buttonGroup[i].checked) {
            return i
         }
      }
   } else {
      if (buttonGroup.checked) { return 0; } // if the one button is checked, return zero
   }
   // if we get to this point, no radio button is selected
   return -1;
} // Ends the getSelectedRadio function

function formatCurrency(num) {
	num = num.toString().replace(/\$|\,/g,'');
	if(isNaN(num))
	num = "0";
	sign = (num == (num = Math.abs(num)));
	num = Math.floor(num*100+0.50000000001);
	cents = num%100;
	num = Math.floor(num/100).toString();
	if(cents<10)
	cents = "0" + cents;
	for (var i = 0; i < Math.floor((num.length-(1+i))/3); i++)
	num = num.substring(0,num.length-(4*i+3))+','+
	num.substring(num.length-(4*i+3));
	return (((sign)?'':'-') /*+ '$' */+ num + '.' + cents);
} //  End -->