function edDoCode( v, formname, textname ) {



	startv	= v;

	endv	= v;

 

	// link

	if (startv == "a") {

	

 		url = prompt( 'Enter the link url' ,'http://' );

		if ( url != "" ) { startv = "a href=\"" + url + "\""; };

		

	}

 

 	// for IE

	if ( document.selection ) {

	

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

	    document.forms[ formname ].elements[ textname ].focus();

	    var sel = document.selection.createRange();

	    sel.text = "<" + startv + ">" + str + "</" + endv + ">";

	    return;

	    

	// for mozilla

	} else if ( ( typeof document.forms[ formname ].elements[ textname ].selectionStart ) != 'undefined' ) {

	

	    var txtarea = document.forms[ formname ].elements[ textname ];

	    var selLength = txtarea.textLength;

	    var selStart = txtarea.selectionStart;

	    var selEnd = txtarea.selectionEnd;

	    var oldScrollTop = txtarea.scrollTop;

	    //if (selEnd == 1 || selEnd == 2)

	    //selEnd = selLength;

	    var s1 = (txtarea.value).substring(0,selStart);

	    var s2 = (txtarea.value).substring(selStart, selEnd)

	    var s3 = (txtarea.value).substring(selEnd, selLength);

	    txtarea.value = s1 + '<' + startv + '>' + s2 + '</' + endv + '>' + s3;

	    txtarea.selectionStart = s1.length;

	    txtarea.selectionEnd = s1.length + 5 + s2.length + startv.length + endv.length;

	    txtarea.scrollTop = oldScrollTop;

	    txtarea.focus();

	    return;

	    

	} else {

	

		insert('<' + v + '></' + v + '> ' , formname, textname );

		

	}

}



function edInsert( what , formname, textname ) {

	

	if (document.forms[formname].elements[textname].createTextRange) {

	

		document.forms[formname].elements[textname].focus();

		document.selection.createRange().duplicate().text = what;

		

	} else if ((typeof document.forms[formname].elements[textname].selectionStart) != 'undefined') {

	

	    var tarea = document.forms[formname].elements[textname];

	    var selEnd = tarea.selectionEnd;

	    var txtLen = tarea.value.length;

	    var txtbefore = tarea.value.substring(0,selEnd);

	    var txtafter =  tarea.value.substring(selEnd, txtLen);

	    var oldScrollTop = tarea.scrollTop;

	    tarea.value = txtbefore + what + txtafter;

	    tarea.selectionStart = txtbefore.length + what.length;

	    tarea.selectionEnd = txtbefore.length + what.length;

	    tarea.scrollTop = oldScrollTop;

	    tarea.focus();

	    

	} else {

	

		document.forms[formname].elements[textname].value += what;

		document.forms[formname].elements[textname].focus();

		

	}

	

}

 

 

function edSelector(selObj){



	v = selObj.options[selObj.selectedIndex].value;

	if (v != "") {

		bbcode(v);

		selObj.options[0].selected = true;

	}

	

}



function edWrite( formname, textname ) {



	document.write( "<div id=\"edToolbar\">" );

		

	document.write( "<a href=\"#\" id=\"button-bold\" onclick=\"edDoCode('strong', '" + formname + "', '" + textname + "'); return false;\">Bold</a>" );

	document.write( "<a href=\"#\" id=\"button-italic\" onclick=\"edDoCode('em', '" + formname + "', '" + textname + "'); return false;\">Italic</a>" );

		document.write( "<a href=\"#\" id=\"button-link\" onclick=\"edDoCode('a', '" + formname + "', '" + textname + "'); return false;\">Link</a>" );

	document.write( "<a href=\"#\" id=\"button-block\" onclick=\"edDoCode('blockquote', '" + formname + "', '" + textname + "'); return false;\">Blockquote</a>" );



		

	document.write( "</div>" );



}