Bugs and Suggestions

<script language='javascript' type='text/javascript'>
<!--
function formatSel(txt, tag) {
	var tr;
	if (document.selection.type.toLowerCase() == 'text') {
		tr = document.selection.createRange();
		var pe = tr.parentElement();
		
		if (!(pe.tagName.toLowerCase() == 'textarea' && pe.id == txt.id))
			tr = txt.createTextRange();
	}
	else
		tr = txt.createTextRange();
		
	var cont = tr.text;
	cont = cont.replace(/&/ig,'&amp;');
	cont = cont.replace(/</ig,'&lt;');
	cont = cont.replace(/>/ig,'&gt;');
	
	cont = '<' + tag + '>' + cont + '</' + tag + '>';
	tr.text = cont;
}

function markPre() {
	formatSel(document.MessageForm.ContentText, 'pre');
}
function markCode() {
	formatSel(document.MessageForm.ContentText, 'code');
}
//-->
</script>