ns4 = (document.layers)? true:false;

var ie4 = (document.all)? true:false;



//image flip set

if (document.images){

 var main1_off = new Image (); main1_off.src = "images/nav_tp_off.gif";   

 var main1_on = new Image (); main1_on.src = "images/nav_tp_on.gif";

 var main2_off = new Image (); main2_off.src = "images/nav_au_off.gif";   

 var main2_on = new Image (); main2_on.src = "images/nav_au_on.gif";

 var main3_off = new Image (); main3_off.src = "images/nav_dd_off.gif";   

 var main3_on = new Image (); main3_on.src = "images/nav_dd_on.gif";

 var main4_off = new Image (); main4_off.src = "images/nav_td_off.gif";   

 var main4_on = new Image (); main4_on.src = "images/nav_td_on.gif";

 var main5_off = new Image (); main5_off.src = "images/nav_ttf_off.gif";   

 var main5_on = new Image (); main5_on.src = "images/nav_ttf_on.gif";

 var main6_off = new Image (); main6_off.src = "images/nav_schools_off.gif";   

 var main6_on = new Image (); main6_on.src = "images/nav_schools_on.gif";
 
 var main7_off = new Image (); main7_off.src = "images/nav_about_off.gif";   

 var main7_on = new Image (); main7_on.src = "images/nav_about_on.gif";

 var sec1_1_off = new Image (); sec1_1_off.src = "images/nav_tp_a_off.gif";   

 var sec1_1_on = new Image (); sec1_1_on.src = "images/nav_tp_a_on.gif";

 var sec1_2_off = new Image (); sec1_2_off.src = "images/nav_tp_b_off.gif";   

 var sec1_2_on = new Image (); sec1_2_on.src = "images/nav_tp_b_on.gif";

 var sec1_3_off = new Image (); sec1_3_off.src = "images/nav_tp_c_off.gif";   

 var sec1_3_on = new Image (); sec1_3_on.src = "images/nav_tp_c_on.gif";

 var sec1_4_off = new Image (); sec1_4_off.src = "images/nav_tp_d_off.gif";   

 var sec1_4_on = new Image (); sec1_4_on.src = "images/nav_tp_d_on.gif";

 var sec1_5_off = new Image (); sec1_5_off.src = "images/nav_tp_e_off.gif";   

 var sec1_5_on = new Image (); sec1_5_on.src = "images/nav_tp_e_on.gif";

 var sec1_6_off = new Image (); sec1_6_off.src = "images/nav_tp_f_off.gif";   

 var sec1_6_on = new Image (); sec1_6_on.src = "images/nav_tp_f_on.gif";

 var sec2_1_off = new Image (); sec2_1_off.src = "images/nav_au_a_off.gif";   

 var sec2_1_on = new Image (); sec2_1_on.src = "images/nav_au_a_on.gif";

 var sec2_2_off = new Image (); sec2_2_off.src = "images/nav_au_b_off.gif";   

 var sec2_2_on = new Image (); sec2_2_on.src = "images/nav_au_b_on.gif";

 var sec2_3_off = new Image (); sec2_3_off.src = "images/nav_au_c_off.gif";   

 var sec2_3_on = new Image (); sec2_3_on.src = "images/nav_au_c_on.gif";

 var sec2_4_off = new Image (); sec2_4_off.src = "images/nav_au_e_off.gif";   

 var sec2_4_on = new Image (); sec2_4_on.src = "images/nav_au_e_on.gif";

 var sec3_1_off = new Image (); sec3_1_off.src = "images/nav_dd_a_off.gif";   

 var sec3_1_on = new Image (); sec3_1_on.src = "images/nav_dd_a_on.gif";

 var sec3_2_off = new Image (); sec3_2_off.src = "images/nav_dd_b_off.gif";   

 var sec3_2_on = new Image (); sec3_2_on.src = "images/nav_dd_b_on.gif";

 var sec3_3_off = new Image (); sec3_3_off.src = "images/nav_dd_c_off.gif";   

 var sec3_3_on = new Image (); sec3_3_on.src = "images/nav_dd_c_on.gif";

 var sec3_4_off = new Image (); sec3_4_off.src = "images/nav_dd_d_off.gif";   

 var sec3_4_on = new Image (); sec3_4_on.src = "images/nav_dd_d_on.gif";

 var sec3_5_off = new Image (); sec3_5_off.src = "images/nav_dd_e_off.gif";   

 var sec3_5_on = new Image (); sec3_5_on.src = "images/nav_dd_e_on.gif";

 var sec3_6_off = new Image (); sec3_6_off.src = "images/nav_dd_f_off.gif";   

 var sec3_6_on = new Image (); sec3_6_on.src = "images/nav_dd_f_on.gif";

 var sec3_7_off = new Image (); sec3_7_off.src = "images/nav_dd_g_off.gif";   

 var sec3_7_on = new Image (); sec3_7_on.src = "images/nav_dd_g_on.gif";

}



//imageflip function

function changeIcon2(iconName,buttonName,divn) {

 if (document.images) {

  if (ns4) {document.layers[divn].document[buttonName].src = eval(iconName +".src")}

  if (ie4) {document[buttonName].src = eval(iconName +".src");}

 }

}



function changeIcon(iconName,buttonName) {      

 if (document.images) {

  if (ns4) {document[buttonName].src = eval(iconName +".src");}

  if (ie4) {document[buttonName].src = eval(iconName +".src");}

 }

}

 

//show with no of items in cascade

function show(id,items){ 

var counter=1;

var x;

 for(counter=1; counter < items+1; counter++){

  x = id+'_'+counter;

  if (ns4) document.layers[x].visibility = "show";

  else if (ie4) document.all[x].style.visibility = "visible";

  };

}



//hide with no of items in cascade

function hide(id,items) {

var counter=1;

var x;

 for(counter=1; counter < items+1; counter++){

  x = id+'_'+counter;

  if (ns4) {document.layers[x].visibility = "hide";}

  if (ie4) {document.all[x].style.visibility = "hidden";}

  };

}



// These two lines handle the window resize bug in NS4. See <body onResize="...">.

// I recommend you leave this here as otherwise when you resize NS4's width menus are hidden.

var popOldWidth = window.innerWidth;

nsResizeHandler = new Function('if (popOldWidth != window.innerWidth) location.reload()');



// pop-up window

var newWindow;

function openWin (href, name, width, height) {

 if ((navigator.platform && navigator.platform.indexOf("Mac")!= -1) && document.all) {

  width -= 16;

  height -= 16;

 }

 var props = "scrollbars=yes,width="+width+",height="+height

 newWindow = window.open(href, name, props);

 newWindow.focus();

 return false;

}


// quiz

var firsttryright=0

function checkme(notries, sanswer, canswer)  {

  	if (sanswer==canswer) {

  					if (notries==1)  {

  						firsttryright+=1;

  						document.status.firsttry.value=(firsttryright)};

  					return "correct!"}

 				else {

 					return "try again"}

					}

function c4refreshbanner() {};

top.c4refreshbanner();