function getElementsByClass(searchClass,node,tag) {
	var classElements = new Array();
	if ( node == null )
		node = document;
	if ( tag == null )
		tag = '*';
	var els = node.getElementsByTagName(tag);
	var elsLen = els.length;
	var pattern = new RegExp("(^|\\s)"+searchClass+"(\\s|$)");
	for (i = 0, j = 0; i < elsLen; i++) {
		if ( pattern.test(els[i].className) ) {
			classElements[j] = els[i];
			j++;
		}
	}
	return classElements;
}

function add_next_photo(id)
{
	var elm = document.getElementById(id);
	var photoElements = getElementsByClass("choosePhoto2", elm, "div");
	var peLen = photoElements.length;
	//alert(peLen);
	for (var i = 0; i < peLen; i++) {
		if(photoElements[i].innerHTML == ""){
			photoElements[i].innerHTML = "<div class=\"choosePhoto\"><input class=\"choosePhotoInput\" type=\"file\" name=\"f_photo[]\" /> \n"
							+ "<a href=\"#addPhoto\" title=\"odstranit\" onclick=\"remove_photo("+i+")\">odstranit</a></div>\n";
			break;
		}
	}
}
function remove_photo(index)
{
	var elm = document.getElementById("choosePhotoId"+index);
	elm.innerHTML = "";
}