var nver,ver,agent,dom,opera,ie5,ie6,ie4,ie,mac,ns6,ie3,hotjava,ns4,bw,ver3,opera7,operaOld;
var is_major=parseInt(navigator.appVersion);nver=is_major;ver=navigator.appVersion;agent=navigator.userAgent;dom=document.getElementById?1:0;opera=window.opera?1:0;ie5=(ver.indexOf("MSIE 5")>-1&&dom&&!opera)?1:0;ie6=(ver.indexOf("MSIE 6")>-1&&dom&&!opera)?1:0;ie4=(document.all&&!dom&&!opera)?1:0;ie=ie4||ie5||ie6;mac=agent.indexOf("Mac")>-1;ns6=(dom&&parseInt(ver)>=5)?1:0;ie3=(ver.indexOf("MSIE")&&(is_major<4));hotjava=(agent.toLowerCase().indexOf('hotjava')!=-1)?1:0;ns4=(document.layers&&!dom&&!hotjava)?1:0;bw=(ie6||ie5||ie4||ns4||ns6||opera);ver3=(hotjava||ie3);opera7=((agent.toLowerCase().indexOf('opera 7')>-1) || (agent.toLowerCase().indexOf('opera/7')>-1));operaOld=opera&&!opera7;
function get_obj(name){return ns4?document.layers[name]:document.all?document.all[name]:document.getElementById(name);}
function preload(){var args = preload.arguments;document.imageArray = new Array(args.length); for(var i=0; i<args.length; i++){document.imageArray[i] = new Image;document.imageArray[i].src = args[i];}}
function makeC(img) {var obj=document.images[img];obj.src='images/'+img+'c.jpg';}
function makeB(img) {var obj=document.images[img];obj.src='images/'+img+'.jpg'}
function showhide(id) {var head = document.getElementById(id);if (head.style.display == "none") head.style.display = "block"; else head.style.display="none";}