function Ajax_GetXMLHttpRequest() {
	if (window.XMLHttpRequest) {
		return new XMLHttpRequest();
	} else {
		if (window.Ajax_XMLHttpRequestProgID) {
			return new ActiveXObject(window.Ajax_XMLHttpRequestProgID);
		} else {
			var progIDs = ["Msxml2.XMLHTTP.5.0", "Msxml2.XMLHTTP.4.0", "MSXML2.XMLHTTP.3.0", "MSXML2.XMLHTTP", "Microsoft.XMLHTTP"];
			for (var i = 0; i < progIDs.length; ++i) {
				var progID = progIDs[i];
				try {
					var x = new ActiveXObject(progID);
					window.Ajax_XMLHttpRequestProgID = progID;
					return x;
				} catch (e) {
				}
			}
		}
	}
	return null;
}
function Ajax_CallBack(type, id, method, args, clientCallBack, debugRequestText, debugResponseText, debugErrors, includeControlValuesWithCallBack, url) {
	
	if (!url)
	{
		url = window.location.href;
		url = url.replace(/\#.*$/, '');
		if (url.indexOf('?') > -1)
			url += "&Ajax_CallBack=true";
		else
		{
			if (url.substr(url.length - 1, 1) == "/")
				url += "default.aspx";
				
			url += "?Ajax_CallBack=true";
		}
	}

	var x = Ajax_GetXMLHttpRequest();
	var result = null;
	if (!x) {
		result = { "value":null, "error": "NOXMLHTTP"};
		if (debugErrors) {
			alert("error: " + result.error);
		}
		if (clientCallBack) {
			clientCallBack(result);
		}
		return result;
	}

	x.open("POST", url, clientCallBack ? true : false);
	x.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=utf-8");
	if (clientCallBack) {
		x.onreadystatechange = function() {
			var result = null;
		
			if (x.readyState != 4) {
				return;
			}
			
			if (debugResponseText) {
				alert(x.responseText);
			}
			
			try
			{
				var result = eval("(" + x.responseText + ")");
				if (debugErrors && result.error) {
					alert("error: " + result.error);
				}
			}
			catch (err)
			{
				if (window.confirm('The following error occured while processing an AJAX request: ' + err.message + '\n\nWould you like to see the response?'))
				{
					var w = window.open();
					w.document.open('text/plain');
					w.document.write(x.responseText);
					w.document.close();
				}
				
				result = new Object();
				result.error = 'An AJAX error occured.  The response is invalid.';
			}
			
			clientCallBack(result);			
		}
	}
	var encodedData = "Ajax_CallBackType=" + type;
	if (id) {
		encodedData += "&Ajax_CallBackID=" + id.split("$").join(":");
	}
	encodedData += "&Ajax_CallBackMethod=" + method;
	if (args) {
		for (var i in args) {
			encodedData += "&Ajax_CallBackArgument" + i + "=" + encodeURIComponent(args[i]);
		}
	}
	if (includeControlValuesWithCallBack && document.forms.length > 0) {
		var form = document.getElementById('aspnetForm');
		for (var i = 0; i < form.length; ++i) {
			var element = form.elements[i];
			if (element.name) {
				var elementValue = null;
				if (element.nodeName == "INPUT") {
					var inputType = element.getAttribute("TYPE").toUpperCase();
					if (inputType == "TEXT" || inputType == "PASSWORD" || inputType == "HIDDEN") {
						elementValue = element.value;
					} else if (inputType == "CHECKBOX" || inputType == "RADIO") {
						if (element.checked) {
							elementValue = element.value;
						}
					}
				} else if (element.nodeName == "SELECT") {
					elementValue = element.value;
				} else if (element.nodeName == "TEXTAREA") {
					elementValue = element.value;
				}
				if (elementValue) {
					encodedData += "&" + element.name + "=" + encodeURIComponent(elementValue);
				}
			}
		}
	}
	if (debugRequestText) {
		alert(encodedData);
	}
	x.send(encodedData);
	if (!clientCallBack) {
		if (debugResponseText) {
			alert(x.responseText);
		}
		result = eval("(" + x.responseText + ")");
		if (debugErrors && result.error) {
			alert("error: " + result.error);
		}
	}
	delete x;
	return result;
}

//Ajax End

//Element Items Borrowed From Prototype

function $() {
  var elements = new Array();

  for (var i = 0; i < arguments.length; i++) {
    var element = arguments[i];
    if (typeof element == 'string')
      element = document.getElementById(element);

    if (arguments.length == 1) 
      return element;

    elements.push(element);
  }

  return elements;
}


var Element = {
  
  toggle: function() {
    for (var i = 0; i < arguments.length; i++) {
      var element = $(arguments[i]);
      element.style.display = 
        (element.style.display == 'none' ? '' : 'none');
    }
  },

  hide: function() {
    for (var i = 0; i < arguments.length; i++) {
      var element = $(arguments[i]);
      element.style.display = 'none';
    }
  },

  show: function() {
    for (var i = 0; i < arguments.length; i++) {
      var element = $(arguments[i]);
      element.style.display = '';
    }
  },

  remove: function(element) {
    element = $(element);
    element.parentNode.removeChild(element);
  },
   
  getHeight: function(element) {
    element = $(element);
    return element.offsetHeight; 
  }
}