var homepage = false;
// onresize for ns4
var origWidth, origHeight;
if (document.layers) {
	origWidth = window.innerWidth; origHeight = window.innerHeight;
	window.onresize = function() { if (window.innerWidth != origWidth || window.innerHeight != origHeight) history.go(0); }
}

var toHide=0;
var onSub=0;
var cur_lyr="secondNav";	// holds id of currently visible layer
var cur_lyr_color;
var cur_sub_lyr;
function swapLayers(id,idColor) {
  if (cur_lyr) hideLayer(cur_lyr, idColor);
  if(cur_lyr_color) changeColor(cur_lyr_color);
  if(cur_sub_lyr) changeColor(cur_sub_lyr);
  showLayer(id,idColor);
  cur_lyr = id;
  cur_lyr_color = idColor;
  //cur_sub_lyr=subLyr;
}

function showLayer(id,idColor) {
  var lyr = getElemRefs(id);
  if (lyr && lyr.css) {
  //lyr.css.visibility = "visible";
  lyr.style.display = "block";
  }
  var iColor = getElemRefs(idColor);
  //iColor.style.background = "#f4f5f9";
  //var iColor1 = getElemRefs(subLyr);
  //iColor1.style.background = "#f4f5f9";
  var atag = getElemRefs(idColor+'_a');
  if(idColor=='home'){
	  atag.style.backgroundPosition = "0px -22px";
  }else if(idColor=='solutions'){
	  atag.style.backgroundPosition = "-72px -22px";
  }else if(idColor=='knowcenter'){
	  atag.style.backgroundPosition = "-197px -22px";
  }else if(idColor=='partners'){
	  atag.style.backgroundPosition = "-398px -22px";
  }else if(idColor=='corporate'){
	  atag.style.backgroundPosition = "-518px -22px";
  }else if(idColor=='newsevents'){
	  atag.style.backgroundPosition = "-647px -22px";
  }
 
}

function hideLayer(id,idColor) {
	
  var lyr = getElemRefs(id);
  if (lyr && lyr.css)
  //lyr.css.visibility = "hidden";
  lyr.style.display = "none";
    var iColor = getElemRefs(idColor);
    //iColor.style.background = "#D7DCE8";
   
	//var iColor1 = getElemRefs(subLyr);
   // iColor1.style.background = "#D7DCE8";
  
}

function changeColor(id) {
  //var iColor = getElemRefs(id);
  //iColor.style.background = "#D7DCE8";
   var atag = getElemRefs(id+'_a');
   if(id=='home'){
	  atag.style.backgroundPosition = "0px 0px";
  }else if(id=='solutions'){
	  atag.style.backgroundPosition = "-72px 0px";
  }else if(id=='knowcenter'){
	  atag.style.backgroundPosition = "-197px 0px";
  }else if(id=='partners'){
	  atag.style.backgroundPosition = "-398px 0px";
  }else if(id=='corporate'){
	  atag.style.backgroundPosition = "-518px 0px";
  }else if(id=='newsevents'){
	  atag.style.backgroundPosition = "-647px 0px";
  }
}
function getElemRefs(id) {
	var el = (document.getElementById)? document.getElementById(id): (document.all)? document.all[id]: (document.layers)? document.layers[id]: null;
	if (el) el.css = (el.style)? el.style: el;
	return el;
}

function showDefalut() {
	subNav1.style.display = "none";
	subNav2.style.display = "none";
	subNav3.style.display = "none";
	subNav4.style.display = "none";
	subNav5.style.display = "none";
	subNav6.style.display = "none";
	secondNav.style.display = "";
	cur_lyr="secondNav";
	
}

function closeSub(div) {
	//alert('fired');
	//alert(event.toElement.id);
	if(event.srcElement.contains(event.toElement)) {
		
		return;
	}
	if(event.toElement.contains(event.srcElement)) {
		
		return;
	}
	//alert(event.toElement.id);
	
	setTimeout('showDefalut()',menuDelay);
	
}

function doSwap() {
	eval(myVar);
}

function setState(var1, var2){
	myVar = 'swapLayers(\''+var1+'\',\''+var2+'\')';
	myTimer=setTimeout('doSwap()',menuDelay);
}

function resetState(){
	clearTimeout(myTimer);
}

var myVar;
var menuDelay=250;