function ShowHideElem(elem_id) {
	if (document.getElementById(elem_id).style.display == "block") {
		document.getElementById(elem_id).style.display = "none";
	} else {
		if (document.getElementById(elem_id).style.display == "none") {
			document.getElementById(elem_id).style.display = "block";
		} else {
			document.getElementById(elem_id).style.display = "block";
		}
	}
}
function ShowHideNode(action, node_id) {
	if (document.getElementById(node_id).style.display == "block") {
		document.getElementById(node_id).style.display = "none";
	} else {
		if (document.getElementById(node_id).style.display == "none") {
			document.getElementById(node_id).style.display = "block";
		} else {
		}
	}
}
function textCounter(field, countfield, maxlimit) {
	if (field.value.length > maxlimit) {
		field.value = field.value.substring(0, maxlimit);
		alert("Maximálna dĺžka textu je 2000 znakov");
		return false;
	} else {
		countfield.value = maxlimit - field.value.length;
	}
}
function HighlightElement(id) {
	$("#" + id).css( {
		opacity : 0.5
	});
}
function DarkElement(id) {
	$("#" + id).css( {
		opacity : 1
	});
}

function ChangeImage(images_path,image_id_left,image_left,title_left,image_id_right,image_right,title_right) {
    var image_path_left =  images_path + image_left;
    var image_path_right =  images_path + image_right;
   $("#" + image_id_left).attr({ 'src': image_path_left, 'title': title_left });
    $("#" + image_id_right).attr({ 'src': image_path_right, 'title': title_right });
}

function ShowForm(val, el) {
	if (val == 'scf') {
		if (document.getElementById(el).style.display == "block") {
			document.getElementById(el).style.display = "none";
		} else {
			if (document.getElementById(el).style.display == "none") {
				document.getElementById(el).style.display = "block";
			}

		}
	}
}