function category_delete(nr,rowID) 
{
    document.getElementById("categorytable").deleteRow(nr);
}

function toggle_form_element(obj) {
	var el = document.getElementById(obj);

	if (el.style.display != "none") {
	        el.style.display = "none";
    } else {
		   el.style.display = "block";
	}
	  
 }

function show_form_element(obj) {
	var el = document.getElementById(obj);

   el.style.display = "block";
  
 }
 
function hide_form_element(obj) {
	var el = document.getElementById(obj);

	        el.style.display = "none";
	  
 }

function show_picture_gallery (image_set, source_function, pic_number, google_code) {
	document.getElementById('current_picture').setAttribute('src',image_set[pic_number]['preview_url']);
	document.getElementById('target_url').setAttribute('href',image_set[pic_number]['target_url']);
	document.getElementById('target_url').innerHTML=image_set[pic_number]['target_desc'];
	
	if (pic_number<image_set.length-1) {
		document.getElementById('pic_next').style.display = 'block';
		var parameter=source_function+'('+eval(pic_number+1)+')';
		document.getElementById('pic_next_link').href = 'javascript:'+parameter;
	} else {
		document.getElementById('pic_next').style.display = 'none';
	}
	if (pic_number>0) {
		document.getElementById('pic_prev').style.display = 'block';
		var parameter=source_function+'('+eval(pic_number-1)+')';
		document.getElementById('pic_prev_link').href = 'javascript:'+parameter;
	} else {
		document.getElementById('pic_prev').style.display = 'none';
	}


}

function showNewstickerText (id, news_text_id) {

	document.getElementById(id).innerHTML=document.getElementById(news_text_id).innerHTML;
	
	
}