var isRichText = false;
var rng;
var currentSTV;
var allSTVs = "";

var isIE;
var isGecko;
var isSafari;
var isKonqueror;

var imagesPath;
var includesPath;
var cssFile;
var generateXHTML;

var lang = "en";
var encoding = "iso-8859-1";


function insaoSTV(imgPath, incPath, css, genXHTML) {

	var ua = navigator.userAgent.toLowerCase();
	isIE = ((ua.indexOf("msie") != -1) && (ua.indexOf("opera") == -1) && (ua.indexOf("webtv") == -1));
	isGecko = (ua.indexOf("gecko") != -1);
	isSafari = (ua.indexOf("safari") != -1);
	isKonqueror = (ua.indexOf("konqueror") != -1);

	generateXHTML = genXHTML;



	if (document.getElementById && document.designMode && !isSafari && !isKonqueror) {
		isRichText = true;
	}

	if (isIE) {
		document.onmouseover = raiseButton;
		document.onmouseout  = normalButton;
		document.onmousedown = lowerButton;
		document.onmouseup   = raiseButton;
	}

	imagesPath = imgPath;
	includesPath = incPath;
	cssFile = css;

	if (isRichText) document.writeln('<style type="text/css">@import "' + includesPath + 'stv.css";</style>');

}

function writeRichText(stv, html, width, height, buttons, readOnly) {
	if (isRichText) {
		if (allSTVs.length > 0) allSTVs += ";";
		allSTVs += stv;

		if (readOnly) buttons = false;

		if (isIE) {
			if (buttons && (width < 340)) width = 340;
			var tablewidth = width;
		} else {
			if (buttons && (width < 340)) width = 340;
			var tablewidth = width + 4;
		}

		document.writeln('<div class="stvDiv">');
		if (buttons == true) {

			document.writeln('<table class="stvBack" cellpadding="0" cellspacing="0" id="Buttons2_' + stv + '" width="' + tablewidth + '">');
			document.writeln('	<tr>');
			document.writeln('		<td><img id="bold" class="stvImage" src="' + imagesPath + 'bold.gif" width="25" height="24" alt="Bold" title="Bold" onClick="stvCommand(\'' + stv + '\', \'bold\', \'\')"></td>');
			document.writeln('		<td><img class="stvImage" src="' + imagesPath + 'italic.gif" width="25" height="24" alt="Italic" title="Italic" onClick="stvCommand(\'' + stv + '\', \'italic\', \'\')"></td>');
			document.writeln('		<td><img class="stvImage" src="' + imagesPath + 'underline.gif" width="25" height="24" alt="Underline" title="Underline" onClick="stvCommand(\'' + stv + '\', \'underline\', \'\')"></td>');
			document.writeln('		<td><img class="stvVertSep" src="' + imagesPath + 'blackdot.gif" width="1" height="20" border="0" alt=""></td>');
			document.writeln('		<td><img class="stvImage" src="' + imagesPath + 'hr.gif" width="25" height="24" alt="Horizontal Rule" title="Horizontal Rule" onClick="stvCommand(\'' + stv + '\', \'inserthorizontalrule\', \'\')"></td>');
			document.writeln('		<td><img class="stvVertSep" src="' + imagesPath + 'blackdot.gif" width="1" height="20" border="0" alt=""></td>');
			document.writeln('		<td><img class="stvImage" src="' + imagesPath + 'numbered_list.gif" width="25" height="24" alt="Ordered List" title="Ordered List" onClick="stvCommand(\'' + stv + '\', \'insertorderedlist\', \'\')"></td>');
			document.writeln('		<td><img class="stvImage" src="' + imagesPath + 'list.gif" width="25" height="24" alt="Unordered List" title="Unordered List" onClick="stvCommand(\'' + stv + '\', \'insertunorderedlist\', \'\')"></td>');
			document.writeln('		<td><div id="forecolor_' + stv + '"><img class="stvImage" src="' + imagesPath + 'textcolor.gif" width="25" height="24" alt="Text Color" title="Text Color" onClick="dlgColorPalette(\'' + stv + '\', \'forecolor\', \'\')"></div></td>');

			document.writeln('		<td width="100%"></td>');
			document.writeln('	</tr>');
			document.writeln('</table>');
		}
		document.writeln('<iframe id="' + stv + '" name="' + stv + '" width="' + width + 'px" height="' + height + 'px" src="' + includesPath + 'clear.html"></iframe>');
		if (!readOnly) document.writeln('<br /><div style=\"visibility:hidden;\"><input type="checkbox" id="chkSrc' + stv + '" onclick="toggleHTMLSrc(\'' + stv + '\',' + buttons + ');" />&nbsp;<label for="chkSrc' + stv + '">View Source</label></div>');
		document.writeln('<iframe width="154" height="104" id="cp' + stv + '" src="' + includesPath + 'colors.html" marginwidth="0" marginheight="0" scrolling="no" style="visibility:hidden; position: absolute;"></iframe>');
		document.writeln('<input type="hidden" id="hdn'+stv+'" name="' + stv + '">');
		document.writeln('</div>');

		document.getElementById('hdn' + stv).value=html;
		enableDesignMode(stv, html, readOnly);
	} else {
		if (!readOnly) {
			document.writeln('<textarea name="' + stv + '" id="' + stv + '" class="field" style="width: ' + width + 'px; height: ' + height + 'px;">'+ html +'</textarea>');
		} else {
			document.writeln('<textarea name="' + stv + '" id="' + stv + '" class="field" style="width: ' + width + 'px; height: ' + height + 'px;">'+ html +'</textarea>');
		}
	}
}

function enableDesignMode(stv, html, readOnly) {
	var frameHtml = "<html id=\"" + stv + "\">\n";
	frameHtml += "<head>\n";

	if (cssFile.length > 0) {
		frameHtml += "<link media=\"all\" type=\"text/css\" href=\"" + cssFile + "\" rel=\"stylesheet\">\n";
	} else {
		frameHtml += "<style>\n";
		frameHtml += "body {\n";
		frameHtml += "	background: #FFFFFF;\n";
		frameHtml += "	margin: 0px;\n";
		frameHtml += "	padding: 0px;\n";
		frameHtml += "	font-family: Arial, Helvetica, Verdana, san-serif;\n";
		frameHtml += "	font-size: 12px;\n";
		frameHtml += "}\n";
		frameHtml += "</style>\n";
	}
	frameHtml += "</head>\n";
	frameHtml += "<body>\n";
	frameHtml +=html+"\n";
	frameHtml += "</body>\n";
	frameHtml += "</html>";

	if (document.all) {
		var oSTV = frames[stv].document;
		oSTV.open();
		oSTV.write(frameHtml);
		oSTV.close();
		if (!readOnly) {
			oSTV.designMode = "On";
			frames[stv].document.attachEvent("onkeypress", function evt_ie_keypress(event) {ieKeyPress(event, stv);});
		}
	} else {
		try {
			if (!readOnly) document.getElementById(stv).contentDocument.designMode = "on";
			try {
				var oSTV = document.getElementById(stv).contentWindow.document;
				oSTV.open();
				oSTV.write(frameHtml);
				oSTV.close();
				if (isGecko && !readOnly) {

					oSTV.addEventListener("keypress", geckoKeyPress, true);
				}
			} catch (e) {
				alert("Error preloading content.");
			}
		} catch (e) {

			if (isGecko) {
				setTimeout("enableDesignMode('" + stv + "', '" + html + "', " + readOnly + ");", 10);
			} else {
				return false;
			}
		}
	}
}

function updateSTV(stv) {
	if (!isRichText) return;

	var readOnly = false;
	if (document.all) {
		if (frames[stv].document.designMode != "On") readOnly = true;
	} else {
		if (document.getElementById(stv).contentDocument.designMode != "on") readOnly = true;
	}

	if (isRichText && !readOnly) {

		if (document.getElementById("chkSrc" + stv).checked) document.getElementById("chkSrc" + stv).click();
		setHiddenVal(stv);
	}
}

function setHiddenVal(stv) {

	var oHdnField = document.getElementById('hdn' + stv);


	if (oHdnField.value == null) oHdnField.value = "";
	if (document.all) {
		if (generateXHTML) {
			oHdnField.value = get_xhtml(frames[stv].document.body, lang, encoding);
		} else {
			oHdnField.value = frames[stv].document.body.innerHTML;
		}
	} else {
		if (generateXHTML) {
			oHdnField.value = get_xhtml(document.getElementById(stv).contentWindow.document.body, lang, encoding);
		} else {
			oHdnField.value = document.getElementById(stv).contentWindow.document.body.innerHTML;
		}
	}


	if (stripHTML(oHdnField.value.replace("&nbsp;", " ")) == "" &&
		oHdnField.value.toLowerCase().search("<hr") == -1 &&
		oHdnField.value.toLowerCase().search("<img") == -1) oHdnField.value = "";
}

function updateSTVs() {
	var vSTVs = allSTVs.split(";");
	for (var i = 0; i < vSTVs.length; i++) {
		updateSTV(vSTVs[i]);
	}
}

function stvCommand(stv, command, option) {

	var oSTV;
	if (document.all) {
		oSTV = frames[stv];
	} else {
		oSTV = document.getElementById(stv).contentWindow;
	}

	try {
		oSTV.focus();
	  	oSTV.document.execCommand(command, false, option);
		oSTV.focus();
	} catch (e) {
//		alert(e);
	}
}

function toggleHTMLSrc(stv, buttons) {

	var oHdnField = document.getElementById('hdn' + stv);

	if (document.getElementById("chkSrc" + stv).checked) {

		if (buttons) {
			showHideElement("Buttons1_" + stv, "hide");
			showHideElement("Buttons2_" + stv, "hide");
		}
		setHiddenVal(stv);
		if (document.all) {
			frames[stv].document.body.innerText = oHdnField.value;
		} else {
			var oSTV = document.getElementById(stv).contentWindow.document;
			var htmlSrc = oSTV.createTextNode(oHdnField.value);
			oSTV.body.innerHTML = "";
			oSTV.body.appendChild(htmlSrc);
		}
	} else {

		if (buttons) {
			showHideElement("Buttons1_" + stv, "show");
			showHideElement("Buttons2_" + stv, "show");
		}
		if (document.all) {

			var output = escape(frames[stv].document.body.innerText);
			output = output.replace("%3CP%3E%0D%0A%3CHR%3E", "%3CHR%3E");
			output = output.replace("%3CHR%3E%0D%0A%3C/P%3E", "%3CHR%3E");
			frames[stv].document.body.innerHTML = unescape(output);
		} else {
			var oSTV = document.getElementById(stv).contentWindow.document;
			var htmlSrc = oSTV.body.ownerDocument.createRange();
			htmlSrc.selectNodeContents(oSTV.body);
			oSTV.body.innerHTML = htmlSrc.toString();
		}
	}
}

function dlgColorPalette(stv, command) {

	setRange(stv);


	var oDialog = document.getElementById('cp' + stv);
	var buttonElement = document.getElementById(command + '_' + stv);
	var iLeftPos = getOffsetLeft(buttonElement);
	var iTopPos = getOffsetTop(buttonElement) + (buttonElement.offsetHeight + 4);
	oDialog.style.left = (iLeftPos) + "px";
	oDialog.style.top = (iTopPos) + "px";

	if ((command == parent.command) && (stv == currentSTV)) {

		if (oDialog.style.visibility == "hidden") {
			showHideElement(oDialog, 'show');
		} else {
			showHideElement(oDialog, 'hide');
		}
	} else {

		var vSTVs = allSTVs.split(";");
		for (var i = 0; i < vSTVs.length; i++) {
			showHideElement('cp' + vSTVs[i], 'hide');
		}
		showHideElement(oDialog, 'show');
	}


	parent.command = command;
	currentSTV = stv;
}

function dlgInsertTable(stv, command) {

	parent.command = command;
	currentSTV = stv;
	InsertTable = popUpWin(includesPath + 'insert_table.htm', 'InsertTable', 360, 180, '');
}

function dlgInsertLink(stv, command) {

	parent.command = command;
	currentSTV = stv;
	InsertLink = popUpWin(includesPath + 'insert_link.htm', 'InsertLink', 360, 180, '');


	setRange(stv);
	var linkText = '';
	if (isIE) {
		linkText = stripHTML(rng.htmlText);
	} else {
		linkText = stripHTML(rng.toString());
	}
	setLinkText(linkText);
}

function setLinkText(linkText) {

	try {
		window.InsertLink.document.linkForm.linkText.value = linkText;
	} catch (e) {

		setTimeout("setLinkText('" + linkText + "');", 10);
	}
}

function popUpWin (url, win, width, height, options) {
	var leftPos = (screen.availWidth - width) / 2;
	var topPos = (screen.availHeight - height) / 2;
	options += 'width=' + width + ',height=' + height + ',left=' + leftPos + ',top=' + topPos;
	return window.open(url, win, options);
}

function setColor(color) {

	var stv = currentSTV;
	var parentCommand = parent.command;

	if (document.all) {
		if (parentCommand == "hilitecolor") parentCommand = "backcolor";


		rng.select();
	}

	stvCommand(stv, parentCommand, color);
	showHideElement('cp' + stv, "hide");
}

function addImage(stv) {

	imagePath = prompt('Enter Image URL:', 'http://');
	if ((imagePath != null) && (imagePath != "")) {
		stvCommand(stv, 'InsertImage', imagePath);
	}
}

function getOffsetTop(elm) {
	var mOffsetTop = elm.offsetTop;
	var mOffsetParent = elm.offsetParent;
	var parents_up = 2;

	while(parents_up > 0) {
		mOffsetTop += mOffsetParent.offsetTop;
		mOffsetParent = mOffsetParent.offsetParent;
		parents_up--;
	}

	return mOffsetTop;
}

function getOffsetLeft(elm) {
	var mOffsetLeft = elm.offsetLeft;
	var mOffsetParent = elm.offsetParent;
	var parents_up = 2;

	while(parents_up > 0) {
		mOffsetLeft += mOffsetParent.offsetLeft;
		mOffsetParent = mOffsetParent.offsetParent;
		parents_up--;
	}

	return mOffsetLeft;
}

function selectFont(stv, selectname) {

	var idx = document.getElementById(selectname).selectedIndex;

	if (idx != 0) {
		var selected = document.getElementById(selectname).options[idx].value;
		var cmd = selectname.replace('_' + stv, '');
		stvCommand(stv, cmd, selected);
		document.getElementById(selectname).selectedIndex = 0;
	}
}

function insertHTML(html) {

	var stv = currentSTV;

	var oSTV;
	if (document.all) {
		oSTV = frames[stv];
	} else {
		oSTV = document.getElementById(stv).contentWindow;
	}

	oSTV.focus();
	if (document.all) {
		var oRng = oSTV.document.selection.createRange();
		oRng.pasteHTML(html);
		oRng.collapse(false);
		oRng.select();
	} else {
		oSTV.document.execCommand('insertHTML', false, html);
	}
}

function showHideElement(element, showHide) {

	if (document.getElementById(element)) {
		element = document.getElementById(element);
	}

	if (showHide == "show") {
		element.style.visibility = "visible";
	} else if (showHide == "hide") {
		element.style.visibility = "hidden";
	}
}

function setRange(stv) {

	var oSTV;
	if (document.all) {
		oSTV = frames[stv];
		var selection = oSTV.document.selection;
		if (selection != null) rng = selection.createRange();
	} else {
		oSTV = document.getElementById(stv).contentWindow;
		var selection = oSTV.getSelection();
		rng = selection.getRangeAt(selection.rangeCount - 1).cloneRange();
	}
	return rng;
}

function stripHTML(oldString) {

	var newString = oldString.replace(/(<([^>]+)>)/ig,"");


   newString = newString.replace(/\r\n/g," ");
   newString = newString.replace(/\n/g," ");
   newString = newString.replace(/\r/g," ");

	newString = trim(newString);

	return newString;
}

function trim(inputString) {

   if (typeof inputString != "string") return inputString;
   var retValue = inputString;
   var ch = retValue.substring(0, 1);

   while (ch == " ") {
      retValue = retValue.substring(1, retValue.length);
      ch = retValue.substring(0, 1);
   }
   ch = retValue.substring(retValue.length - 1, retValue.length);

   while (ch == " ") {
      retValue = retValue.substring(0, retValue.length - 1);
      ch = retValue.substring(retValue.length - 1, retValue.length);
   }

   while (retValue.indexOf("  ") != -1) {

      retValue = retValue.substring(0, retValue.indexOf("  ")) + retValue.substring(retValue.indexOf("  ") + 1, retValue.length);
   }
   return retValue;
}


function geckoKeyPress(evt) {

	var stv = evt.target.id;

	if (evt.ctrlKey) {
		var key = String.fromCharCode(evt.charCode).toLowerCase();
		var cmd = '';
		switch (key) {
			case 'b': cmd = "bold"; break;
			case 'i': cmd = "italic"; break;
			case 'u': cmd = "underline"; break;
		};

		if (cmd) {
			stvCommand(stv, cmd, null);

			evt.preventDefault();
			evt.stopPropagation();
		}
 	}
}


function ieKeyPress(evt, stv) {
	var key = (evt.which || evt.charCode || evt.keyCode);
	var stringKey = String.fromCharCode(key).toLowerCase();


}

function checkspell() {

	try {
		var tmpis = new ActiveXObject("ieSpell.ieSpellExtension");
		tmpis.CheckAllLinkedDocuments(document);
	}
	catch(exception) {
		if(exception.number==-2146827859) {
			if (confirm("ieSpell not detected.  Click Ok to go to download page."))
				window.open("http://www.iespell.com/download.php","DownLoad");
		} else {
			alert("Error Loading ieSpell: Exception " + exception.number);
		}
	}
}

function raiseButton(e) {
	var el = window.event.srcElement;

	className = el.className;
	if (className == 'stvImage' || className == 'stvImageLowered') {
		el.className = 'stvImageRaised';
	}
}

function normalButton(e) {
	var el = window.event.srcElement;

	className = el.className;
	if (className == 'stvImageRaised' || className == 'stvImageLowered') {
		el.className = 'stvImage';
	}
}

function lowerButton(e) {
	var el = window.event.srcElement;

	className = el.className;
	if (className == 'stvImage' || className == 'stvImageRaised') {
		el.className = 'stvImageLowered';
	}
}