// confirm delete beach
function confirmDeleteBeach(url)
{
	if(confirm('Er du sikker på at du vil slette denne strand?'))
	{
		window.location.href = url;
	}
}

// confirm delete billede
function confirmDeleteImage(url)
{
	if(confirm('Er du sikker på at du vil slette dette billede?'))
	{
		window.location.href = url;
	}
}

// toggle visibility of an object
function toggle(obj)
{
	var el = document.getElementById(obj);
	el.style.display = (el.style.display != 'block' ? 'block' : 'none' );
}

// get elements by class name
function getElementsByClass(searchClass, domNode, tagNames)
{
	if (domNode == null) domNode = document;
	if (tagNames == null) tagNames = '*';
	var el = new Array();
	var tags = domNode.getElementsByTagName(tagNames);
	var tcl = " "+searchClass+" ";
	for(i=0,j=0; i<tags.length; i++)
	{
		var test = " " + tags[i].className + " ";
		if (test.indexOf(tcl) != -1)
		{
			el[j++] = tags[i];
		}
	}
	return el;
}

function switchid(id)
{
	// create array of items
	var ids = getElementsByClass('strandbox');

	// loop and hide all items in array
	for(i=0; i<ids.length; i++)
	{
		ids[i].style.display = 'none';
	}

	// show an element with a specified id - safe for older browsers
	if (document.getElementById) // DOM3 = IE5, NS6
	{
		document.getElementById(id).style.display = 'block';
	}
	else
	{
		if (document.layers) // Netscape 4
		{
			document.id.display = 'block';
		}
		else // IE 4
		{
			document.all.id.style.display = 'block';
		}
	}
}