browserName = navigator.appName; browserVer = parseInt(navigator.appVersion);





if (browserName == "Netscape" && browserVer >= 3) { browserCheck = "ok"; }





else { 





    if (browserName == "Microsoft Internet Explorer" && browserVer >= 3) { browserCheck = "ok"; }





    else { browserCheck = "bad"; }





}





if (browserCheck == "ok") { 





b1a = new Image(); b1a.src = "but1.gif";


b1b = new Image(); b1b.src = "but1a.gif";


b2a = new Image(); b2a.src = "but2.gif";


b2b = new Image(); b2b.src = "but2a.gif";


b3a = new Image(); b3a.src = "but3.gif";


b3b = new Image(); b3b.src = "but3a.gif";


b4a = new Image(); b4a.src = "but4.gif";


b4b = new Image(); b4b.src = "but4a.gif";


b5a = new Image(); b5a.src = "but5.gif";


b5b = new Image(); b5b.src = "but5a.gif";


b6a = new Image(); b6a.src = "but6.gif";


b6b = new Image(); b6b.src = "but6a.gif";


b7a = new Image(); b7a.src = "but7.gif";


b7b = new Image(); b7b.src = "but7a.gif";


b8a = new Image(); b8a.src = "but8.gif";


b8b = new Image(); b8b.src = "but8a.gif";


}





function imgswap( Iname1, Iname2) { if (browserCheck == "ok") { document [Iname1].src


= eval(Iname2 + ".src"); } }