function selectMedia(s)
{
	var types = new Array ("","video","audio","text");
	// first hide them all
	for(var i=0;i<types.length;i++)
	{
		if(i)
		{
			document.getElementById("type_"+types[i]).style.display = "none";
		}
	}
	// then show the relevant one
	if(s.selectedIndex)
	{
		document.getElementById("type_"+types[s.selectedIndex]).style.display = "block";
	}
}

function checkShare(f)
{
	if(f.fullname.value=="") { alert("Please enter your name"); return false; }
	if(f.telephone.value=="" || f.email.value=="") { alert("Please enter your telephone number or email address"); return false; }
	if(f.memory.value=="") { alert("Please provide a description of your memory"); return false; }
	return true;
}

function swapimages(name,extra,on)
{ 
	if(document.images)
	{
		if(document.images[name])
		{
			document.images[name].src = on ? "images/nav_"+name+"_over"+extra+".gif" : "images/nav_"+name+"_off"+extra+".gif";
		}	
	}
}

function search(f)
{
	if(f.query.value!="Search for memories" && f.query.value!="") document.location = "explore/search/"+f.query.value;
	return false;
}

function pageReady()
{
	document.getElementById("loading").style.display = "none";
}