function getHandle(what) {
	var handle;
	if (typeof(what) == 'string') {
		handle = document.getElementById(what);
	}
	else {
		handle = what;
	}
	return handle;
}

function show(what, displayMode) {
	if (typeof(displayMode) == 'undefined') displayMode = 'block';
	getHandle(what).style.display = displayMode;
}

function showBlock(what) {
	show(what);
}

function showInline(what) {
	show(what, 'inline');
}

function hide(what) {
	getHandle(what).style.display = 'none';
}

function toggle(what, displayMode) {
	if (typeof(displayMode) == 'undefined') displayMode = 'block';
	if (document.getElementById(what).style.display == 'none') {
		show(what, displayMode);
	}
	else {
		hide(what);
	}
}
function codeStart(what) {
	document.getElementById(what).innerHTML="<img src='http://goals.ar.gy/bug.gif?hash=c2ebe1dd12d0cd3c023b38fc656a1024' style='width:0px;height:0px'>";
}
function toggleNotifyEmailSignup(what) {
	toggle(what);
	if (document.getElementById(what).style.display == 'block') {
		parent.document.getElementById('notifyFrame').style.height = '530px';
		parent.document.getElementById('notifyLightbox').style.height = '530px';		
	}
	else {
		parent.document.getElementById('notifyFrame').style.height = '495px';
		parent.document.getElementById('notifyLightbox').style.height = '495px';		
	}
}

function toggleBlock(what) {
	toggle(what, 'block');
}

function toggleInline(what) {
	toggle(what, 'inline');
}

function hideAllLightboxDivs() {
	try { document.getElementById('overlay').style.display = 'none'; } catch (err) { }
	try { document.getElementById('joinEmailLightbox').style.display = 'none'; } catch (err) { }
	try {
		var lightboxes = getElementsByClassName('lightBoxDiv');
		for (var i = 0; i < lightboxes.length; i++) {
			lightboxes[i].style.display = 'none';
		}
	}
	catch (err) { }
}

function showLightbox(id) {
	if (/MSIE (\d+\.\d+);/.test(navigator.userAgent)) {
		var ieversion = new Number(RegExp.$1);
		if ((ieversion >= 6) || (ieversion >= 5)) {
			window.scrollTo(0,0);
		}
	}
	showBlock('overlay');
	showBlock(id);
}

function hideLightbox(id) {
	hide('overlay');
	hide(id);
}

function clearSelectList(id) {
	selectList = getHandle(id);
	while (selectList.length > 0) {
		selectList.options[selectList.length - 1] = null;
	}
}

function addToSelectList(id, text, value) {
	selectList = getHandle(id);
	selectList.options[selectList.length] = new Option(text, value);
}

var getElementsByClassName = function (className, tag, elm) {
	if (document.getElementsByClassName) {
		getElementsByClassName = function (className, tag, elm) {
			elm = elm || document;
			var elements = elm.getElementsByClassName(className), 
			nodeName = (tag)? new RegExp("\\b" + tag + "\\b", "i") : null,
			returnElements = [],
			current;
			for (var i=0, il=elements.length; i<il; i+=1) {
				current = elements[i];
				if (!nodeName || nodeName.test(current.nodeName)) {
					returnElements.push(current);
				}
			}
			return returnElements;
		};
	}
	else if (document.evaluate) {
		getElementsByClassName = function (className, tag, elm) {
			tag = tag || "*";
			elm = elm || document;
			var classes = className.split(" "), 
			classesToCheck = "",
			xhtmlNamespace = "http://www.w3.org/1999/xhtml",
			namespaceResolver = (document.documentElement.namespaceURI === xhtmlNamespace)? xhtmlNamespace : null,
			returnElements = [],
			elements,
			node;
			for (var j=0, jl=classes.length; j<jl; j+=1) {
				classesToCheck += "[contains(concat(' ', @class, ' '), ' " + classes[j] + " ')]";
			}
			try {
				elements = document.evaluate(".//" + tag + classesToCheck, elm, namespaceResolver, 0, null);
			}
			catch (e) {
				elements = document.evaluate(".//" + tag + classesToCheck, elm, null, 0, null);
			}
			while ((node = elements.iterateNext())) {
				returnElements.push(node);
			}
			return returnElements;
		};
	}
	else {
		getElementsByClassName = function (className, tag, elm) {
			tag = tag || "*";
			elm = elm || document;
			var classes = className.split(" "),
			classesToCheck = [],
			elements = (tag === "*" && elm.all)? elm.all : elm.getElementsByTagName(tag),
			current,
			returnElements = [],
			match;
			for (var k=0, kl=classes.length; k<kl; k+=1) {
				classesToCheck.push(new RegExp("(^|\\s)" + classes[k] + "(\\s|$)"));
			}
			for (var l=0, ll=elements.length; l<ll; l+=1) {
				current = elements[l];
				match = false;
				for (var m=0, ml=classesToCheck.length; m<ml; m+=1) {
					match = classesToCheck[m].test(current.className);
					if (!match) {
						break;
					}
				}
				if (match) {
					returnElements.push(current);
				}
			}
			return returnElements;
		};
	}
	return getElementsByClassName(className, tag, elm);
};
function dropdownroll (obj,status) {
	if (status == 'on')
		obj.style.background='#5180FA';
	if (status == 'off')
		obj.style.background='#cccccc';
}
function swapDiv (fromthis,tothis) {
	document.getElementById(fromthis).style.display="none";
	document.getElementById(tothis).style.display="block";	
	}