// JavaScript Document
//
// WinterSky Interactive Functions 
//

// define 'global' variables
var mainNav = null;
var subNav = false;
var subNavNum = null;
var vRestore = null;
//
function WSMC_Nav_Set(layerID) { //Check current page
	MM_swapImgRestore();
	eval("MM_showHideLayers('l_ser','','hide','l_about','','hide','l_studies','','hide','l_mc','','hide','l_request','','hide')");
	if ( mainNav != null) {
		eval("document." + mainNav + ".src='img/nav/" + mainNav + "_over.gif'");
	}
	if ( subNav ) {
		eval("MM_showHideLayers('l_" + mainNav + "','','show')");
		subElement = "l_" + mainNav + "_" + subNavNum;
		subObject=MM_findObj(subElement);
		subObject.className="dropMenuCur";
	}
	if ( layerID != null) {
		if ( mainNav != null) {
			eval("document." + mainNav + ".src='img/nav/" + mainNav + "_over.gif'");
			eval("MM_showHideLayers('l_" + mainNav + "','','hide')");
		}
		eval("MM_showHideLayers('l_" + layerID + "','','show')");
	}
}

function WSMC_Nav_Restore() { //Check current page
	vRestore = setTimeout("WSMC_Nav_Set(null)", 1000);
}

function WSMC_Nav_ClearTimer() { //Check current page
	if (vRestore) clearTimeout(vRestore);
	vRestore = null;
}
//
// Macromedia Dreamweaver Functions 
//
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);

function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}