// JavaScript Document
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}

MM_reloadPage(true);

/////////////////////////////////////

var gNavContents = [];
var gNavTables = [];

function showNavTab(num) {
	gNavContents[1].style.visibility = (num == 1 ? "visible" : "hidden");
	gNavContents[2].style.visibility = (num == 2 ? "visible" : "hidden");
	gNavContents[3].style.visibility = (num == 3 ? "visible" : "hidden");
	gNavContents[4].style.visibility = (num == 4 ? "visible" : "hidden");
}

function initTabs() {
	var platform = navigator.platform;
	var browserName = navigator.appName;
	var browserVer = navigator.appVersion;
	default_browser();	
}

function default_browser() {
	gNavContents[1] = getLayer("content1");
	gNavContents[2] = getLayer("content2");
	gNavContents[3] = getLayer("content3");
	gNavContents[4] = getLayer("content4");
	gNavTables[1] = getLayer("table1");
	gNavTables[2] = getLayer("table2");
	gNavTables[3] = getLayer("table3");
	gNavTables[4] = getLayer("table4");
}


function getLayer(sLyrName) {
	var o;
	if (document.all) {
		o = document.all[sLyrName];
	} else if (document.getElementById) {
		o = document.getElementById(sLyrName);
	} else if (document.layers) {
		o = getNsLayer(sLyrName);		
	}
	if (o) {
		return o;
	} else {
		return 0
	}
}