function init(host) {
  pic1= new Image(70,42); 
  pic1.src=host+"images/top_left.gif";
  pic2= new Image(70,42); 
  pic2.src=host+"images/top_right.gif";
  pic3= new Image(70,42); 
  pic3.src=host+"images/bottom_left.gif";
  pic4= new Image(70,42); 
  pic4.src=host+"images/bottom_right.gif";
}

function Toggle(elimg, eldiv, imgopen, imgclosed) {
	//el = document.getElementById(elimg);
	var el_div = document.getElementById(eldiv);
	var el_img = document.getElementById(elimg);
	
	//alert("img.src: " + el_img.src + "| imgopen: " + imgopen + "| imgclosed: " + imgclosed);
	
	if(el_img.src == imgopen) {
		el_div.style.display = "none";
		el_img.src = imgclosed;
	} else {
		el_div.style.display = "block";
		el_img.src = imgopen;
	}		
}

function popupImage(img, name, width, height) {
	//window.open('images/' + img, name, 'width='+width + ',' + 'height='+height + ',resizable=no,scrollbars=no,topmargin=0,bottommargin=0');
	//window.open('http://www.bissoftware.com/images/popup.html?' + img, name, 'width='+width + ',' + 'height='+height + ',resizable=no,top=' + top + ',left=' + left + ',scrollbars=auto,topmargin=0,bottommargin=0');
	//http://www.bissoftware.com/
	var scrollbars = 'yes';
	window.open('images/popup2.html?' + img, name, 'scrollbars=' + scrollbars + ',resizable=yes,topmargin=0,bottommargin=0');
}

function DJ_MouseOver(el, up, over, djtext) {
	var djel = document.getElementById('disjointedText');
	var img = document.getElementById(el);
	
	img.src=over;
	djel.firstChild.nodeValue=djtext;
}

function DJ_MouseOut(el, out) {
	var djel = document.getElementById('disjointedText');
	var img = document.getElementById(el);
	
	img.src=out;
	djel.firstChild.nodeValue='Explore Our World';
}

function submitOnEnter(myfield,e) {
	var keycode;
	
	if(window.event) keycode = window.event.keyCode;
	else if(e) keycode = e.which;
	else return true;
	
	if(keycode == 13) {
		myfield.form.submit();
		return false;
	} else {
		return true;
	}
}

function validateTrainingSignup() {
	if(document.forms['trainingsignup'].timeofday.value == '') {
		alert('What time of day would you like your training?');
		return false;
	} else {
		document.forms['trainingsignup'].submit();
		return true;
	}
}

function validateFormNewUser() {
	if(document.forms['newuser'].username.value == '') {
		alert('You must specify a username');
		return false;
	}
	if(document.forms['newuser'].password.value == '') {
		alert('You must specify a password');
		return false;
	}
	if(document.forms['newuser'].password.value != document.forms['newuser'].password_confirm.value) {
		alert('Your password entries do not match');
		return false;
	}
	return true;
}

function validateFormNewNews() {
	return true;
}

function validateFormUploadFile() {
	return true;
}

function formNewUserUpdateDays() {
	var daysInMonth = new Array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
	
	//alert('Month: ' + document.forms['newuserform'].month.value + 'DaysInMonth: ' + daysInMonth[document.forms['newuserform'].month.value-1]);	
	
	document.forms['newuserform'].day.options.length = 0;

	var i = 0;
	for(i = 0; i < daysInMonth[document.forms['newuserform'].month.value-1]; i++) {
		document.forms['newuserform'].day.options[i] = new Option(i+1, i+1);
	}
}

function formDeleteFileCheckboxClick() {
	var checked = 0;
	
	for(counter = 0; counter < document.forms['deletefileform'].files.length; counter++) {
		if(document.forms['deletefileform'].files[counter].checked) {
			checked = checked + 1;
		}
	}
	
	if(checked > 0) {
		document.forms['deletefileform'].btnSubmit.disabled = false;
	} else {
		document.forms['deletefileform'].btnSubmit.disabled = true;
	}
}

function showHide(toshow, tohide) {
	toshowel = document.getElementById(toshow);
	tohideel = document.getElementById(tohide);
	
	toshowel.style.display = 'block';
	tohideel.style.display = 'none';
}

function formAnnouncementsDeleteCheckboxClick() {
	var checked = 0;
	
	for(counter = 0; counter < document.forms['announcementsviewform'].aids.length; counter++) {
		if(document.forms['announcementsviewform'].aids[counter].checked) {
			checked = checked + 1;
		}
	}
	
	if(checked > 0) {
		document.forms['announcementsviewform'].btnSubmit.disabled = false;
	} else {
		document.forms['announcementsviewform'].btnSubmit.disabled = true;
	}	
}

function formFAQsDeleteCheckboxClick() {
	var checked = 0;
	
	for(counter = 0; counter < document.forms['faqsviewform'].fids.length; counter++) {
		if(document.forms['faqsviewform'].fids[counter].checked) {
			checked = checked + 1;
		}
	}
	
	if(checked > 0) {
		document.forms['faqsviewform'].btnSubmit.disabled = false;
	} else {
		document.forms['faqsviewform'].btnSubmit.disabled = true;
	}	
}