function switchDiv(div_id) {
	var style_sheet = getStyleObject(div_id);
	if (style_sheet) {
		hideAll();
		changeObjectVisibility(div_id, "visible");
	} else {
		alert("sorry, this only works in browsers that do Dynamic HTML");
	}
}
function getStyleObject(objectId) {
  if(document.getElementById && document.getElementById(objectId)) {
	return document.getElementById(objectId).style;
   } else if (document.all && document.all(objectId)) {  
	return document.all(objectId).style;
   } else if (document.layers && document.layers[objectId]) { 
	return document.layers[objectId];
   } else {
	return false;
   }
}
function changeObjectVisibility(objectId, newVisibility) {
	var styleObject = getStyleObject(objectId);
    if (styleObject) {
		styleObject.visibility = newVisibility;
		return true;
    } else {
		return false;
    }
}
function hideAll() {
	changeObjectVisibility("fileUpload","hidden");
	changeObjectVisibility("noUpload","hidden");
}