///////////////////////////// MACROMEDIA DHTML LAYERS FUNCTIONS ///////////////////////////

//__ The MM_ functions are copyright Macromedia

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_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_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; }
}

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_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_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];}
}


//////////////////////////////////// MORE DHTML LAYER FUNCTIONS ///////////////////////////////

function dd_hide_show_selects(the_action) {
	var cp_selects = document.getElementsByTagName("select");
	var number_to_hide = 0;
	var number_needed_hidden = 4;  // 4 was the number of selects I needed to hide

	if (windows && ie5) {
		if (cp_selects.length > number_needed_hidden) {
			number_to_hide = number_needed_hidden;
		}
		else {
			number_to_hide = cp_selects.length;
		}
		for (var i=0; i<number_to_hide; i++) {
			cp_selects[i].style.visibility = the_action;
		}
	}
}

function DD_images_to_normal() {
   changeImages('mainnav06_02', '/images/layout/mainnav06_02.gif', 'mainnav06_03', '/images/layout/mainnav06_03.gif', 'mainnav06_04', '/images/layout/mainnav06_04.gif', 'mainnav06_05', '/images/layout/mainnav06_05.gif', 'mainnav06_06', '/images/layout/mainnav06_06.gif', 'mainnav06_07', '/images/layout/mainnav06_07.gif', 'mainnav06_08', '/images/layout/mainnav06_08.gif', 'mainnav06_09', '/images/layout/mainnav06_09.gif', 'mainnav06_10', '/images/layout/mainnav06_10.gif');
}


function DD_hide_all_layers() {
   MM_showHideLayers('divs_students_classes','','hide', 'hider1','','hide', 'hider2','','hide', 'hider3','','hide', 'hider4','','hide', 'divs_clients','','hide', 'divs_students','','hide', 'divs_ud','','hide', 'divs_speaking','','hide', 'divs_media','','hide');
}