function format_sel(el, v) {
	var str = document.selection.createRange().text;	
	if (str != '') {
		el.focus();
		var sel = document.selection.createRange();
		sel.text = "<" + v + ">" + str + "</" + v + ">";
	}
	return;
}

function insert_link(el) {
	var str = document.selection.createRange().text;
	if (str != '') {
		el.focus();
		var my_link = prompt("Voer het internet adres in:","http://");
		if (my_link != null) {
		  var sel = document.selection.createRange();
		  sel.text = "<a href=\"" + my_link + "\" target=\"_blank\">" + str + "</a>";
		}
	}
	return;
}

function insert_email(el) {
	var str = document.selection.createRange().text;
	if (str != '') {
		el.focus();
		var my_link = prompt("Voer het e-mail adres in:","");
		if (my_link != null) {
		  var sel = document.selection.createRange();
		  sel.text = "<a href=\"mailto:" + my_link + "\">" + str + "</a>";
		}
	}
	return;
}

function mouseover(el) {
  el.className = "raised";
}

function mouseout(el) {
  el.className = "button";
}

function mousedown(el) {
  el.className = "pressed";
}

function mouseup(el) {
  el.className = "raised";
}