<!--
browser = (((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) >= 3 )) || ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4 )))


	if ( browser ) {


               nav1on = new Image(101, 28);

               nav1on.src = "../images/images_general/c1_on.gif";

               nav2on = new Image(136, 28);

               nav2on.src = "../images/images_general/c2_on.gif";

               nav3on = new Image(112, 28);

               nav3on.src = "../images/images_general/c3_on.gif";

               nav4on = new Image(127, 28);

               nav4on.src = "../images/images_general/c4_on.gif";

               
		    nav1off = new Image(101, 28);

               nav1off.src = "../images/images_general/c1_off.gif";

		    nav2off = new Image(136, 28);

               nav2off.src = "../images/images_general/c2_off.gif";

		    nav3off = new Image(112, 28);

               nav3off.src = "../images/images_general/c3_off.gif";

		    nav4off = new Image(127, 28);

               nav4off.src = "../images/images_general/c4_off.gif";

		   
             }


       function img_act(imgName) {

               if ( browser ) {

               imgOn = eval(imgName + "on.src");

               document [imgName].src = imgOn;

               }

       }


       function img_inact(imgName) {

               if ( browser ) {

               imgOff = eval(imgName + "off.src");

               document [imgName].src = imgOff;

               }

       }
// -->