function open_window (href)
{
	var window_params = 'menubar=no,toolbar=no,width=700,height=530';
	window.open (href, 'new_window', window_params);
	return false;
}

function store_caret_pos (field)
{
	if (field.createTextRange) 
		field.caretPos = document.selection.createRange ().duplicate ();
}

function insert_at_caret (field, text)
{
	if (field.createTextRange && field.caretPos)
	{
		var caretPos = field.caretPos;
		caretPos.text = caretPos.text.charAt (caretPos.text.length - 1) == ' ' ? text + ' ' : text;
	}
	else
		field.value = text;
	field.focus ();
}