function addContent(id) {
	var addNewOption
	var currentSelection
	var id_in
	var id_out
	id_in=document.all[id]
	id_out=document.all[id+"_out"]
  for (var i=id_out.options.length-1; i >= 0; i--) {

		currentSelection = id_out.options[i].selected

    if (currentSelection == true) {
    	addNewOption = new Option(id_out.options[i].text, id_out.options[i].value)
			id_in.options[id_in.options.length]=addNewOption
			id_out.options[i]=null
    }
  }
}
function delContent(id) {
	var addNewOption
	var currentSelection
	var id_in
	var id_out
	id_in=document.all[id]
	id_out=document.all[id+"_out"]
  for (var i=id_in.options.length-1; i >= 0; i--) {

		currentSelection = id_in.options[i].selected

    if (currentSelection == true) {
    	addNewOption = new Option(id_in.options[i].text, id_in.options[i].value)
			id_out.options[id_out.options.length]=addNewOption
			id_in.options[i]=null
    }
  }
}