browserName = navigator.appName;

 version = "";

 browserVer = parseInt(navigator.appVersion);



 if ( browserName == "Netscape" && browserVer>= 3 ) version = "n3";

 if ( browserName == "Microsoft Internet Explorer" && browserVer>=4 ) version = "e4";



if ( version == "n3" || version == "e4" )



 { 

 //pre-cache graphics

 //

 contents_02_s = new Image(126,22);

 contents_02_s.src = "images/contents_02-over.gif";

 contents_02_f = new Image(126,22);

 contents_02_f.src = "images/contents_02.gif";


 contents_03_s = new Image(126,23);

 contents_03_s.src = "images/contents_03-over.gif";

 contents_03_f = new Image(126,23);

 contents_03_f.src = "images/contents_03.gif";


 contents_04_s = new Image(126,21);

 contents_04_s.src = "images/contents_04-over.gif";

 contents_04_f = new Image(126,21);

 contents_04_f.src = "images/contents_04.gif";


 contents_05_s = new Image(126,23);

 contents_05_s.src = "images/contents_05-over.gif";

 contents_05_f = new Image(126,23);

 contents_05_f.src = "images/contents_05.gif";


 contents_06_s = new Image(126,21);

 contents_06_s.src = "images/contents_06-over.gif";

 contents_06_f = new Image(126,21);

 contents_06_f.src = "images/contents_06.gif";


 contents_07_s = new Image(126,23);

 contents_07_s.src = "images/contents_07-over.gif";

 contents_07_f = new Image(126,23);

 contents_07_f.src = "images/contents_07.gif";


 contents_08_s = new Image(126,22);

 contents_08_s.src = "images/contents_08-over.gif";

 contents_08_f = new Image(126,22);

 contents_08_f.src = "images/contents_08.gif";


 contents_09_s = new Image(126,22);

 contents_09_s.src = "images/contents_09-over.gif";

 contents_09_f = new Image(126,22);

 contents_09_f.src = "images/contents_09.gif";


 }



function img_act2(imgName)

{ if ( version == "n3" || version == "e4" )

 { imgOn = eval(imgName + "_s.src");

 document[imgName].src = imgOn;

 }

}



function img_inact2(imgName)

{ if ( version == "n3" || version == "e4" )

{ document[imgName].src = eval(imgName + "_f.src");

 }

}