// beginning of Javascript script
if (parseInt(navigator.appVersion.substring(0,1))>=3) { // 3.0 or greater.
	  
	navRoll1_on = new Image()
	navRoll1_off = new Image()

	navRoll1_off.src = 'i/nav/about_off.gif';
	navRoll1_on.src = 'i/nav/about_on.gif';
	
	navRoll2_on = new Image()
	navRoll2_off = new Image()

	navRoll2_off.src = 'i/nav/capabilities_off.gif';
	navRoll2_on.src = 'i/nav/capabilities_on.gif';
	
	navRoll3_on = new Image()
	navRoll3_off = new Image()

	navRoll3_off.src = 'i/nav/careers_off.gif';
	navRoll3_on.src = 'i/nav/careers_on.gif';
	
	navRoll4_on = new Image()
	navRoll4_off = new Image()

	navRoll4_off.src = 'i/nav/about_overview_off.gif';
	navRoll4_on.src = 'i/nav/about_overview_on.gif';
	
	navRoll5_on = new Image()
	navRoll5_off = new Image()

	navRoll5_off.src = 'i/nav/about_leadership_off.gif';
	navRoll5_on.src = 'i/nav/about_leadership_on.gif';
	
	navRoll6_on = new Image()
	navRoll6_off = new Image()

	navRoll6_off.src = 'i/nav/contact_us_off.gif';
	navRoll6_on.src = 'i/nav/contact_us_on.gif';
	
	navRoll7_on = new Image()
	navRoll7_off = new Image()

	navRoll7_off.src = 'i/nav/capabilities_overview_off.gif';
	navRoll7_on.src = 'i/nav/capabilities_overview_on.gif';
	
	navRoll8_on = new Image()
	navRoll8_off = new Image()

	navRoll8_off.src = 'i/nav/soft_lithography_off.gif';
	navRoll8_on.src = 'i/nav/soft_lithography_on.gif';
	
	navRoll9_on = new Image()
	navRoll9_off = new Image()

	navRoll9_off.src = 'i/nav/self_assembly_off.gif';
	navRoll9_on.src = 'i/nav/self_assembly_on.gif';
	
	navRoll10_on = new Image()
	navRoll10_off = new Image()

	navRoll10_off.src = 'i/nav/surface_chemistry_off.gif';
	navRoll10_on.src = 'i/nav/surface_chemistry_on.gif';
	
	navRoll11_on = new Image()
	navRoll11_off = new Image()

	navRoll11_off.src = 'i/nav/microfluidics_off.gif';
	navRoll11_on.src = 'i/nav/microfluidics_on.gif';
	
	navRoll12_on = new Image()
	navRoll12_off = new Image()

	navRoll12_off.src = 'i/nav/publications_off.gif';
	navRoll12_on.src = 'i/nav/publications_on.gif';
	
	navRoll13_on = new Image()
	navRoll13_off = new Image()

	navRoll13_off.src = 'i/nav/press_off.gif';
	navRoll13_on.src = 'i/nav/press_on.gif';
}


function on(image) {
  if (parseInt(navigator.appVersion.substring(0,1))>=3) { // 3.0 or greater.
      imagesrc = eval(image + '_on.src');
      document[image].src = imagesrc;
  }
}

function off(image) {
  if (parseInt(navigator.appVersion.substring(0,1))>=3) { // 3.0 or greater.
      imagesrc = eval(image + "_off.src");
      document[image].src = imagesrc;
 }
}

// end of script -->