// JavaScript Document

function initNav(){
	//Set current nav item
	setNavCat();
	saveCurrentCat();
	showCases(eval(current_cat));
}

var case_cat = "";
var current_cat = "";

function setNavCat() {
	case_cat = getCaseCat();
	//check url param to make sure it corresponds to one of our numbered nav items 2-6; if yes set menu // nav item 1 is auto set in other code
	if ( (case_cat != '=') && ((case_cat > 1)&&(case_cat < 7)) ) {
		hideMenu(case_cat);
	}
}	

function getCaseCat() {
	fullurl = String(window.location); 
	return fullurl.substring(fullurl.indexOf('?')+3, fullurl.indexOf('?')+4); 
}

function saveCurrentCat() {
	fullurl = String(window.location); 
	current_cat = fullurl.substring(fullurl.indexOf('?')+4, fullurl.indexOf('?')+5);
	if ( fullurl.indexOf('?') == -1 ) {
		current_cat = "";
	}
}

function backHome() {
	var temp_string = '../index.html?x=' + current_cat + 0;
	window.location = temp_string;
}

function goToCase(case_url){
	var temp_url = case_url + oldMenuBtn;
	document.location = temp_url;
}

/* menu image rolls */
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);

/* top nav show-hide cases */
var currentMenuBtn;
var oldMenuBtn;

function hideMenu(currentMenuBtn) {
if (document.getElementById) {
document.getElementById('menu'+currentMenuBtn).style.visibility = 'hidden';
gallery.navigate(currentMenuBtn-1);
document.getElementById('menu'+oldMenuBtn).style.visibility = 'visible';
oldMenuBtn = currentMenuBtn;
}
}

function startingMenu() {
if (document.getElementById) {
document.getElementById('menu1').style.visibility = 'hidden';
oldMenuBtn=1;
}
}

function setStyleByClass(objClass,objProperty,objValue) {
	var elements = document.getElementsByTagName('*')
	for(var i = 0; i < elements.length; i++){
		if(elements[i].className == objClass) {
		//eval('elements[i].style.' + objProperty + " = '" + objValue + "'");
			elements[i].style[objProperty] = objValue;                        
       	 }
	}
}

function showCases(category) {
	//var myCars=new Array('caseNeurology','caseCardiology','caseOncology','caseInfectiousDisease','caseWomensHealth');
	setStyleByClass('caseNeurology','display','none');
	setStyleByClass('caseCardiology','display','none');
	setStyleByClass('caseOncology','display','none');
	setStyleByClass('caseInfectiousDisease','display','none');
	setStyleByClass('caseWomensHealth','display','none');
	
	switch(category){
		case 2:
  			setStyleByClass('caseNeurology','display','block');
			break;
		case 3:
  			setStyleByClass('caseCardiology','display','block');
			break;
		case 4:
  			setStyleByClass('caseOncology','display','block');
  			break;
		case 5:
  			setStyleByClass('caseInfectiousDisease','display','block');
  			break;
		case 6:
  			setStyleByClass('caseWomensHealth','display','block');
  			break;
		default:
  			setStyleByClass('caseNeurology','display','block');
			setStyleByClass('caseCardiology','display','block');
			setStyleByClass('caseOncology','display','block');
			setStyleByClass('caseInfectiousDisease','display','block');
			setStyleByClass('caseWomensHealth','display','block');
	}
}