// PAGE HEIGHT SCRIPT //


function setFooter() { 
  if (document.getElementById) {
      var windowHeight = getWindowHeight();

    if (windowHeight > 0) {
        var contentHeight = (document.getElementById('content').offsetHeight);
        var container     = document.getElementById('navbg')
    var panelHeight   = document.getElementById('navigation').offsetHeight;
    
    if (panelHeight > contentHeight) {
    contentHeight = panelHeight
    }

        if ((windowHeight-200) > contentHeight) {


          if (navigator.appVersion.indexOf("MSIE") != -1) {

              var isIE = true;
    document.getElementById("content").style.height = (contentHeight)+'px';
    container.style.height = (contentHeight+362)+'px';
             //alert("IE");
                }
         else {
    document.getElementById("content").style.height = (contentHeight)+'px';
    container.style.height = (contentHeight+365)+'px';
            //alert(contentHeight + "pxH" + windowHeight);
          }
      }
        else {
        if (navigator.appVersion.indexOf("MSIE") != -1) {
    document.getElementById("content").style.height = contentHeight+20+'px';
    container.style.height = (contentHeight+364)+'px';
    // alert("IEIE")
    }
  
          else {
       
    document.getElementById("content").style.height = (contentHeight)+'px';
    container.style.height = (contentHeight+365)+'px';
          // alert("WH = " + windowHeight + "; CH = " + contentHeight);
          
          //alert(panelHeight +  "px")
            }
              }
           }


         }
       }

function getWindowHeight() {
  var windowHeight = 0;
  if (typeof(window.innerHeight)=="number") {
    windowHeight=window.innerHeight;
           }
  else {
    if (document.documentElement && document.documentElement.clientHeight) {
      windowHeight = document.documentElement.clientHeight;
     }
    else {
    if (document.body && document.body.clientHeight) {
      windowHeight=document.body.clientHeight;
     }
   }
  }
return windowHeight;
}



//window.onload = function() {
 //  stayopen();
 //  setFooter();
 // }
window.onresize = function() {
   setFooter();
  }
  
  
// NAVIGATION SCRIPT //
  
  
function navi(el,j) {
var elem = document.getElementById(el);
elem.style.display="block";
elem.style.visibility="visible";
for(var c = 1;c < (j+1); c++) {
var elem2 = document.getElementById(el + "b" + c);
if (elem2) {
elem2.style.display="block";
elem2.style.visibility="visible";
  }
}
setFooter();
}

function navig(el) {
var elem = document.getElementById(el);
elem.style.display="block";
elem.style.visibility="visible";
setFooter();
}

function clox(ref) {
var el = 1
while (el<30) {
if (el != ref) {
var eln = document.getElementById("a" + el + "");
if (eln) {
eln.style.display="none";
eln.style.visibility="hidden";
 }
}
el++;
}

clos(ref);

setFooter();
}

function clos(ref) {
var el = 1;


for (var sl=1; sl<10; sl++) {
for (var rf=1;rf<5;rf++) {
var el3 = document.getElementById("a" + sl + "b" + rf + "");
if (el3 && sl != ref) {
el3.style.display="none";
el3.style.visibility="hidden";
  }
 }
}

while (el<30) {
if (el != ref) {
var eln = document.getElementById("n" + el + "");
var el2 = document.getElementById("a" + el + "");


if (el2 && el != ref) {
el2.style.display="none";
el2.style.visibility="hidden";
 }
if (eln && el != ref) {
eln.style.display="none";
eln.style.visibility="hidden";
 }
}
el++;
}
var sch = document.getElementById("cz");
if (sch) {
sch.style.display="none";
sch.style.visibility="hidden";
}

setFooter();

}

function ocz() {

var sch = document.getElementById("cz");
if (sch) {
sch.style.display="block";
sch.style.visibility="visible";
}

setFooter();

}


function openw(loc) {
window.open(loc,"_self");
}

function opennew(loc) {
window.open(loc,"_blank");
}

function openA(ref) {
var el = 1;
while (el<100) {
if (el != ref) {
var eln = document.getElementById("ans_" + el + "");
if (eln) {
eln.style.display="none";
eln.style.visibility="hidden";
 }
}
el++;
}

var opn = document.getElementById("ans_" + ref + ""); 
if (opn) {
opn.style.display="block";
opn.style.visibility="visible";
 }
 
 setFooter();

}


function map(ref) {

if (ref==1) {
var pge2 = document.getElementById("map" + (ref + 1) + "");
}
else {
var pge2 = document.getElementById("map" + (ref - 1) + "");
}


if (pge2) {
pge2.style.display="none";
pge2.style.visibility="hidden";
}

var pge1 = document.getElementById("map" + ref + "");
if (pge1) {
pge1.style.display="block";
pge1.style.visibility="visible";
}

}