// JavaScript Document
 if (document.images) 

	      {   var button1 = new Image()

	          button1.src = "images/button/button_r1_c1.png"

	          var button1a = new Image()

	          button1a.src = "images/button/button_r2_c1.png"

	  		}

	      {   var button2 = new Image()

	          button2.src = "images/button/button_r1_c2.png"

	          var button2a = new Image()

	          button2a.src = "images/button/button_r2_c2.png"

	  		}

	      {   var button3 = new Image()

	          button3.src = "images/button/button_r1_c3.png"

	          var button3a = new Image()

	          button3a.src = "images/button/button_r2_c3.png"

	  		}

	  		function inact(imgName) 

	      {   if (document.images)

	          document[imgName].src = eval(imgName + '.src')

	       }

	      function act(imgName) 

	      {   if (document.images) 

	          document[imgName].src = eval(imgName + 'a.src')

	       }