function addface(tagname, tag) {
	var myField;
	if (document.getElementById(tagname) && document.getElementById(tagname).type == 'textarea') {
		myField = document.getElementById(tagname);
	} else {
		return false;
	}
	if (document.selection) {
		sel = document.selection.createRange();
		sel.text = tag;
		myField.focus();
	} else if (myField.selectionStart || myField.selectionStart == '0') {
		var startPos = myField.selectionStart;
		var endPos = myField.selectionEnd;
		var cursorPos = endPos;
		myField.value = myField.value.substring(0, startPos)
			+ tag
			+ myField.value.substring(endPos, myField.value.length);
		cursorPos += tag.length;
		myField.selectionStart = cursorPos;
		myField.selectionEnd = cursorPos;
		myField.focus();
	} else {
		myField.value += tag;
		myField.focus();
	}
}