function pageLoad(){
	var bodyClass=document.getElementsByTagName("body")[0].className;
	//alert(bodyClass);
	if ((bodyClass.indexOf("ptype-multipage")!=-1) && (bodyClass.indexOf("ptype-article-xx")!=-1)) 
		showHideContent('content1');
	if (bodyClass.indexOf("ptype-vid-tabbed")!=-1) 
		presetTab();
	
	simplifyInterface();
	
	if (document.getElementById('tab-sheet-content')!=null)
		updateScrollButtons('tab-sheet-content');	
}

function MM_findObj(n, d) { 
  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 && document.getElementById) x=document.getElementById(n); return x;
}

function showHideContent(area) {
	var obj;
	hideAllContent('content');
	if ((obj=MM_findObj(area))!=null)
		obj.className="content-active";
	
	if ((obj=MM_findObj('nav-'+area))!=null)
		obj.className="nav-on-xx";
}

function hideAllContent(contentid) {  
	var l=1;
	while ((obj=MM_findObj(contentid+''+l))!=null) {
		obj.className="content-inactive";
		l++;
	}
	
	l=1;
	while ((obj=MM_findObj('nav-'+contentid+''+l))!=null) {
		obj.className="nav-xx";
		l++;
	}
}

function showLayer(){
	var args=showLayer.arguments;
	if ((obj=MM_findObj(args[0]))!=null)
		obj.className="content-active";
}
function hideLayer(){
	var args=hideLayer.arguments;
	if ((obj=MM_findObj(args[0]))!=null)
		obj.className="content-inactive";
}