// LIST ALL SHOW/HIDE ELEMENT IDS HERE
menus_array = new Array ('dd01','dd02', 'dd03', 'dd04', 'dd05', 'dd06', 'dd07', 'dd08', 'dd09');
dirs_array = new Array ('','overview', 'programs', 'apply', 'students', 'visit', 'parents', 'teachers', 'alumni');
menus_status_array = new Array ();// remembers state of switches


function getCookie(name) {
  var dc = document.cookie;
  var prefix = name + "=";
  var begin = dc.indexOf("; " + prefix);
  if (begin == -1) {
    begin = dc.indexOf(prefix);
    if (begin != 0) return null;
  } else
    begin += 2;
  var end = document.cookie.indexOf(";", begin);
  if (end == -1)
    end = dc.length;
  return unescape(dc.substring(begin + prefix.length, end));
}

function getHost(){
	var url = window.location.href;
	var urlparts = url.split('/');
	var i = 0;
	//var host = urlparts[0];
	/*for(i=0;i<urlparts.length;i++){
				alert("Part " + i + ":" + urlparts[i]);
	}*/
	/*var d = urlparts[urlparts.length-2];
	return d;*/
	
	var d = "";
	for ( var j=0; j<dirs_array.length; j++ ) {
		if ( urlparts[urlparts.length-1]  == dirs_array[j] ) {
			
			d=urlparts[urlparts.length-1];
		}else if ( urlparts[urlparts.length-2]  == dirs_array[j] ) {
			d=urlparts[urlparts.length-2];
		}	
	}
	
	return d;
}          




function showHideSwitch (theid) {
  if (document.getElementById) {
    var switch_id = document.getElementById(theid);
   
    if (menus_status_array[theid] != 'show') {
     
      switch_id.className = 'showSwitch';
	  menus_status_array[theid] = 'show';
	  document.cookie = theid+'=show';
    }else{
     
      switch_id.className = 'hideSwitch';
	  menus_status_array[theid] = 'hide';
	  document.cookie = theid+'=hide';
    }
  }
}
/*function resetMenu () { // read cookies and set menus to last visited state
  if (document.getElementById) {
	var dir = getHost();
	alert(dir);
    for (var i=0; i<menus_array.length; i++) {
		
      var idname = menus_array[i];
	  
      var switch_id = document.getElementById(idname);
	  
      
      if (getCookie(idname) == 'show') {
	    
        switch_id.className = 'showSwitch';
	    menus_status_array [idname] = 'show';
	  }else{
	   
        switch_id.className = 'hideSwitch';
	    menus_status_array [idname] = 'hide';
	  }
    }
  }
}*/

function checkLinks() {
	var links = document.getElementsByTagName("a");
	for (var i=0; i<links.length; i++) {
	
		if (links[i].className == "e_sub") {
			//alert( links[i].href );
			
			var url = window.location.href;
			if ( links[i].href.indexOf("/undergrad_admission/") != -1  && 
				url.indexOf("/undergrad_admission/") != -1 ) {
				
				var thisStart = links[i].href.indexOf("/undergrad_admission/");
				var thisSRR = links[i].href.substring(thisStart);
				
				var urlStart = url.indexOf("/undergrad_admission/");
				var urlSRR = url.substring(urlStart);
				
				
				
				if ( urlSRR == thisSRR ) {
					
					links[i].className = "hilite";
					links[i].setAttribute("class","hilite");
					
				}else if ( urlSRR == thisSRR + "index.shtml" ) {
					links[i].className = "hilite";
					links[i].setAttribute("class","hilite");
					
				
				}else if ( urlSRR  + "index.shtml" == thisSRR ) {
					links[i].className = "hilite";
					links[i].setAttribute("class","hilite");
					
				}
				
				
				
				
				
				
			}
			
		}
	
	}
}





function resetMenu () { // read cookies and set menus to last visited state
	if (document.getElementById) {
		var dir = getHost();
	
		for (var i=0; i<menus_array.length; i++) {
			var idname = menus_array[i];
			var switch_id = document.getElementById(idname);
			var head_name = "dt" + idname.substring(2);
			var head_id = document.getElementById(head_name);
			if ( dirs_array[i] == dir ) {
				head_id.className= 'hilite';
				head_id.setAttribute("class","hilite");
				switch_id.className = 'showSwitch';
				menus_status_array [idname] = 'show';	
				
			}else{
				switch_id.className = 'hideSwitch';
				menus_status_array [idname] = 'hide';
				head_id.className= 'normal';
			}
		}
	checkLinks();
	}
}