//Sets the style of the text in BBCode

function setStyle(command, option, textboxID) {

	var textObj = document.getElementById(textboxID);

	switch(command) {



		case "bold":

			wrapSelection(textObj,"[b]","[/b]");

			break;

		case "italic":

			wrapSelection(textObj,"[i]","[/i]");

			break;

		case "underline":

			wrapSelection(textObj,"[u]","[/u]");

			break;

		case "code":

			wrapSelection(textObj,"[code]","[/code]");

			break;

		case "img":

			wrapSelection(textObj,"[img]","[/img]");

			break;

		case "quote":

			wrapSelection(textObj,"[quote]","[/quote]");

			break;

		case "justifyleft":

			wrapSelection(textObj,"[left]","[/left]");

			break;

		case "justifycenter":

			wrapSelection(textObj,"[center]","[/center]");

			break;

		case "justifyright":

			wrapSelection(textObj,"[right]","[/right]");

			break;

		case "createlink":

			var url = prompt('Enter URL:','http://');

			if (url != '' && url != null)

			{

				if (getSelection(textObj))

				{

					wrapSelection(textObj,'[url='+url+']','[/url]');

				}

				else

				{

					// ask for the description text...

					var desc = prompt('Enter URL Description:','');

					if (desc != '' && desc != null)

						replaceSelection(textObj,'[url='+url+']'+desc+'[/url]');

					else

						replaceSelection(textObj,'[url]'+url+'[/url]');

				}

			}

			break;

		case "color":

			wrapSelection(textObj,"[color="+option+"]","[/color]");

			break;

		case "fontsize":

			wrapSelection(textObj,"[size="+option+"]","[/size]");

			break;

		default:

			alert("Unknown in FormatText " + command);

			break;



	}


}



//Replces the selection with the BBCode and the selections

function replaceSelection (input, replaceString) {



	if (input.setSelectionRange) {

		var selectionStart = input.selectionStart;

		var selectionEnd = input.selectionEnd;



		input.value = input.value.substring(0, selectionStart)

					+ replaceString

					+ input.value.substring(selectionEnd);



		if (selectionStart != selectionEnd) // has there been a selection

			setSelectionRange(input, selectionStart, selectionStart + 

			replaceString.length);

		else // set caret

			setCaretToPos(input, selectionStart + replaceString.length);

	} else if (document.selection) {

		if(input.caretPos) {

			var caretPos = input.caretPos;

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



			if(caretPos.text!='') {

				caretPos.moveStart('character', -replaceString.length);

				caretPos.select();

			}



		} else {

			input.value += replaceString;

		}



	} else {



		input.value += replaceString;

		input.focus();

	}



}





//Wraps the selected text in BBCode

function wrapSelection (input, preString, postString) {



	if (input.setSelectionRange) {

		var selectionStart = input.selectionStart;

		var selectionEnd = input.selectionEnd;



		input.value = input.value.substring(0, selectionStart)

					+ preString

					+ input.value.substring(selectionStart,selectionEnd)

					+ postString

					+ input.value.substring(selectionEnd);



		if (selectionStart != selectionEnd) // has there been a selection

			setSelectionRange(input, selectionStart, preString.length + postString.length + selectionEnd);

		else // set caret

			setCaretToPos(input, selectionStart + (preString).length);

	} else if (document.selection) {

		var sel = document.selection.createRange().text;

		

		if(sel) {

			document.selection.createRange().text = preString + sel + postString;

			input.focus();

		} else {

			input.value += preString + postString;

			input.focus();

		}

	} else {

		input.value += preString + postString;

		input.focus();

	}



}





function setSelectionRange(input, selectionStart, selectionEnd) {

	if (input.setSelectionRange) {

		input.focus();

		input.setSelectionRange(selectionStart, selectionEnd);

	} else if(input.createTextRange) {

		var range = input.createTextRange();



		range.collapse(true);

		range.moveEnd('character', selectionEnd);

		range.moveStart('character', selectionStart);

		range.select();

	}



}



function getSelection(input) 

{



	if(input.setSelectionRange) 

	{

		return input.selectionStart != input.selectionEnd;

	}

	 else if(document.selection) 

	 {

		var range = document.selection.createRange();

		return range.parentElement()==input && range.text!='';

	 } 

	 else 

	 {

		return false;

	 }



}



function setCaretToPos (input, pos) {

	setSelectionRange(input, pos, pos);

}