/****************************************
/* Funtions in javascript
/* by P. Altstedt 2007
/****************************************/

/*	openImage, closeImage and visibleImage are used for opening and closing
	enlarged images. */

function OpenImage(imagefile, imageinfo)
{
  // Create the info for the large image.
  var imageinfoarray = imageinfo.split(",");
  document.getElementById("largeimageinfo").innerHTML = "";
  for (x in imageinfoarray)
  {
    document.getElementById("largeimageinfo").innerHTML +=
      imageinfoarray[x] + "<br />"
  }
	document.getElementById('content').style.visibility = "hidden";
	document.getElementById('contentnav').style.visibility = "hidden";
	//document.getElementById('leftfooter').style.visibility = "hidden";
	//document.getElementById('rightfooter').style.visibility = "hidden";
	document.getElementById('currentimage').src = imagefile;
	document.getElementById('largeimage').style.visibility = "visible";
	document.getElementById('largeimageinfo').style.visibility = "visible";
}

function CloseImage(filename)
{
	document.getElementById('largeimage').style.visibility = "hidden";
	document.getElementById('content').style.visibility = "visible";
	document.getElementById('contentnav').style.visibility = "visible";
	//document.getElementById('leftfooter').style.visibility = "visible";
	//document.getElementById('rightfooter').style.visibility = "visible";
	document.getElementById('largeimageinfo').style.visibility = "hidden";
}

function GetShortDescription(description)
{
  return substring(0, description.indexOf(','));
}

function VisibleImage()
{
	return document.getElementById('currentimage').src;
}

function ShowHideImageInfo()
{
  if (document.getElementById('largeimageinfo').style.visibility == "hidden")
  {
    document.getElementById('largeimageinfo').style.visibility = "visible"
  }
  else
  {
    document.getElementById('largeimageinfo').style.visibility = "hidden"
  }
}

function submitchoice(choice)
{
  if (choice.value.length > 4)
  {
    // Set the default page to show, index.php (.).
    var redirectpage = ".";
    if (choice.name != "continent")
    {
      // Set the page to redirect to.
      redirectpage = "./viewimages.php?" + choice.value;
    }
    document.choices.action = redirectpage;
    document.choices.submit();
  }
  else
  {
	  document.choices.action = "updatechoice.php";
	  document.choices.submit();
	}
}

function submitcontinent()
{
  document.firstchoices.action = "submitcontinent.php";
	document.firstchoices.submit();
}

function submitfirstchoices()
{
 	document.firstchoices.submit();
}