<!--       ***This part picks images***
var caption="test caption #1";
var image="";
var banners=0;
function writeCaption() {
document.getElementById('captionBox').innerHTML = 'Image of monthly-averaged percent sea ice concentration for September 2007 derived from <a href=/data/nsidc-0051.html>Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I Passive Microwave Data</a> in a Polar Stereographic projection. Image courtesy of NSIDC.<br><br>';
   }
function cycle() {
  if (++banners > 4) banners=1; 
    loadcaptions();
	loadbanners();
	document.banner1.src = image;
    window.setTimeout('cycle();',6000); 
  }
function loadcaptions() {
   if (banners==1)
      {
      document.getElementById('captionBox').innerHTML = 'Image of monthly-averaged percent sea ice concentration for September 2007 derived from <a href=/data/nsidc-0051.html>Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I Passive Microwave Data</a> in a Polar Stereographic projection. Image courtesy of NSIDC.<br><br>';
      }
   if (banners==2)
      {
	  document.getElementById('captionBox').innerHTML = 'A sample image from the <a href=/data/myd29v5.html>MODIS/Aqua Sea Ice Extent 5-Min L2 Swath 1km</a> data set obtained on 05 February 2004 over the Weddell Sea. The shades of white and grey show the ice surface temperature (IST) for that day. Image courtesy of NSIDC.<br><br>';
      }
   if (banners==3)
      {
      document.getElementById('captionBox').innerHTML = 'A sample image of the National Ice Center (NIC) sea ice charts from the <a href=/data/g02172.html>National Ice Center Arctic Sea Ice Charts and Climatologies in Gridded Format</a> data set. This image shows a 10-year climatology of the median ice concentration file for July over the Arctic. Image courtesy of NSIDC.';
      }
   if (banners==4)
      {
      document.getElementById('captionBox').innerHTML = 'Mean sea ice motion vectors for September 2006 for the Northern Hemisphere from the <a href=/data/nsidc-0116.html>Polar Pathfinder Daily 25 km EASE-Grid Sea Ice Motion Vectors</a> data set. Image courtesy of NSIDC.<br><br><br>';
      }
    }
function loadbanners() {
   if (banners==1)
      {
      image="/data/seaice/images/slideshow_images/nsidc0051.jpg";
      }
   if (banners==2)
      {
      image="/data/seaice/images/slideshow_images/myd29.jpg";
      }
   if (banners==3)
      {
      image="/data/seaice/images/slideshow_images/g02172.jpg";
      }
   if (banners==4)
      {
      image="/data/seaice/images/slideshow_images/nsidc-0116.jpg";
      }
	}

//-->

<!--       ***This part picks links***
var link = "/data/seaice/images/slideshow_images/nsidc0051_200709_f13_n_sea_ice_conc.png"
function urlswitch() {
   if (banners==1)
      {
      link = "/data/seaice/images/slideshow_images/nsidc0051_200709_f13_n_sea_ice_conc.png";
      }
   if (banners==2)
      {
      link = "/data/seaice/images/slideshow_images/myd29_seaice_extent_020504.gif";
      }
   if (banners==3)
      {
      link = "/data/seaice/images/slideshow_images/g02172_nic_chart_1995_2004_07_med.gif";
      }
   if (banners==4)
      {
      link = "/data/seaice/images/slideshow_images/nsdic-0116_mean_icemotion_vectors_092006_N.png";
      }


return link;
}
//-->

