var winpop=null;

function jspop(turl,tW,tH,tSCRL,tRESIZE)
{
	if(winpop!=null)winpop.close();
	var popleft=((document.body.clientWidth - tW) / 2)+window.screenLeft;
	var poptop=(((document.body.clientHeight - tH) / 2))+window.screenTop-40;
	winpop = window.open(turl,"PopupWindow","resizable="+tRESIZE+",scrollbars="+tSCRL+",width="+tW+",height="+tH+",left="+popleft+",top="+poptop);
}
function changeVisState(tstate,tobj)
{
	if(eval(tobj).style.display=="none")
	eval(tobj).style.display="";
	else
	eval(tobj).style.display="none";
}
function jumpBox(list) 
{
  	location.href = list.options[list.selectedIndex].value
}


var smf_formSubmitted = false;

// Define document.getElementById for Internet Explorer 4.
if (typeof(document.getElementById) == "undefined")
	document.getElementById = function (id)
	{
		// Just return the corresponding index of all.
		return document.all[id];
	}
// Define XMLHttpRequest for IE 5 and above. (don't bother for IE 4 :/.... works in Opera 7.6 and Safari 1.2!)
else if (!window.XMLHttpRequest && window.ActiveXObject)
	window.XMLHttpRequest = function ()
	{
		return new ActiveXObject(navigator.userAgent.indexOf("MSIE 5") != -1 ? "Microsoft.XMLHTTP" : "MSXML2.XMLHTTP");
	};

// Some older versions of Mozilla don't have this, for some reason.
if (typeof(document.forms) == "undefined")
	document.forms = document.getElementsByTagName("form");

// Load an XML document using XMLHttpRequest.
function getXMLDocument(url, callback)
{
	if (!window.XMLHttpRequest)
		return false;

	var myDoc = new XMLHttpRequest();
	if (typeof(callback) != "undefined")
	{
		myDoc.onreadystatechange = function ()
		{
			if (myDoc.readyState != 4)
				return;

			if (myDoc.responseXML != null && myDoc.status == 200)
				callback(myDoc.responseXML);
		};
	}
	myDoc.open('GET', url, true);
	myDoc.send(null);

	return true;
}

// Send a post form to the server using XMLHttpRequest.
function sendXMLDocument(url, content, callback)
{
	if (!window.XMLHttpRequest)
		return false;

	var sendDoc = new window.XMLHttpRequest();
	if (typeof(callback) != "undefined")
	{
		sendDoc.onreadystatechange = function ()
		{
			if (sendDoc.readyState != 4)
				return;

			if (sendDoc.responseXML != null && sendDoc.status == 200)
				callback(sendDoc.responseXML);
			else
				callback(false);
		};
	}
	sendDoc.open('POST', url, true);
	if (typeof(sendDoc.setRequestHeader) != "undefined")
		sendDoc.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
	sendDoc.send(content);

	return true;
}

function textToEntities(text)
{
	var entities = "";
	for (var i = 0; i < text.length; i++)
	{
		if (text.charCodeAt(i) > 127)
			entities += "&#" + text.charCodeAt(i) + ";";
		else
			entities += text.charAt(i);
	}

	return entities;
}

// Open a new window.
function reqWin(desktopURL, alternateWidth, alternateHeight, noScrollbars)
{
	if ((alternateWidth && self.screen.availWidth * 0.8 < alternateWidth) || (alternateHeight && self.screen.availHeight * 0.8 < alternateHeight))
	{
		noScrollbars = false;
		alternateWidth = Math.min(alternateWidth, self.screen.availWidth * 0.8);
		alternateHeight = Math.min(alternateHeight, self.screen.availHeight * 0.8);
	}
	else
		noScrollbars = typeof(noScrollbars) != "undefined" && noScrollbars == true;

	window.open(desktopURL, 'requested_popup', 'toolbar=no,location=no,status=no,menubar=no,scrollbars=' + (noScrollbars ? 'no' : 'yes') + ',width=' + (alternateWidth ? alternateWidth : 480) + ',height=' + (alternateHeight ? alternateHeight : 220) + ',resizable=no');

	// Return false so the click won't follow the link ;).
	return false;
}

// Remember the current position.
function storeCaret(text)
{
	// Only bother if it will be useful.
	if (typeof(text.createTextRange) != "undefined")
		text.caretPos = document.selection.createRange().duplicate();
}

// Replaces the currently selected text with the passed text.
function replaceText(text, textarea)
{
	// Attempt to create a text range (IE).
	if (typeof(textarea.caretPos) != "undefined" && textarea.createTextRange)
	{
		var caretPos = textarea.caretPos;

		caretPos.text = caretPos.text.charAt(caretPos.text.length - 1) == ' ' ? text + ' ' : text;
		caretPos.select();
	}
	// Mozilla text range replace.
	else if (typeof(textarea.selectionStart) != "undefined")
	{
		var begin = textarea.value.substr(0, textarea.selectionStart);
		var end = textarea.value.substr(textarea.selectionEnd);
		var scrollPos = textarea.scrollTop;

		textarea.value = begin + text + end;

		if (textarea.setSelectionRange)
		{
			textarea.focus();
			textarea.setSelectionRange(begin.length + text.length, begin.length + text.length);
		}
		textarea.scrollTop = scrollPos;
	}
	// Just put it on the end.
	else
	{
		textarea.value += text;
		textarea.focus(textarea.value.length - 1);
	}
}

// Surrounds the selected text with text1 and text2.
function surroundText(text1, text2, textarea)
{
	// Can a text range be created?
	if (typeof(textarea.caretPos) != "undefined" && textarea.createTextRange)
	{
		var caretPos = textarea.caretPos, temp_length = caretPos.text.length;

		caretPos.text = caretPos.text.charAt(caretPos.text.length - 1) == ' ' ? text1 + caretPos.text + text2 + ' ' : text1 + caretPos.text + text2;

		if (temp_length == 0)
		{
			caretPos.moveStart("character", -text2.length);
			caretPos.moveEnd("character", -text2.length);
			caretPos.select();
		}
		else
			textarea.focus(caretPos);
	}
	// Mozilla text range wrap.
	else if (typeof(textarea.selectionStart) != "undefined")
	{
		var begin = textarea.value.substr(0, textarea.selectionStart);
		var selection = textarea.value.substr(textarea.selectionStart, textarea.selectionEnd - textarea.selectionStart);
		var end = textarea.value.substr(textarea.selectionEnd);
		var newCursorPos = textarea.selectionStart;
		var scrollPos = textarea.scrollTop;

		textarea.value = begin + text1 + selection + text2 + end;

		if (textarea.setSelectionRange)
		{
			if (selection.length == 0)
				textarea.setSelectionRange(newCursorPos + text1.length, newCursorPos + text1.length);
			else
				textarea.setSelectionRange(newCursorPos, newCursorPos + text1.length + selection.length + text2.length);
			textarea.focus();
		}
		textarea.scrollTop = scrollPos;
	}
	// Just put them on the end, then.
	else
	{
		textarea.value += text1 + text2;
		textarea.focus(textarea.value.length - 1);
	}
}

// Checks if the passed input's value is nothing.
function isEmptyText(theField)
{
	// Copy the value so changes can be made..
	var theValue = theField.value;

	// Strip whitespace off the left side.
	while (theValue.length > 0 && (theValue.charAt(0) == ' ' || theValue.charAt(0) == '\t'))
		theValue = theValue.substring(1, theValue.length);
	// Strip whitespace off the right side.
	while (theValue.length > 0 && (theValue.charAt(theValue.length - 1) == ' ' || theValue.charAt(theValue.length - 1) == '\t'))
		theValue = theValue.substring(0, theValue.length - 1);

	if (theValue == '')
		return true;
	else
		return false;
}