var ZeroL = null;
var vis = false;

var imgs = [
	['images/home.gif', 'images/home_.gif', 'home'],
	['images/facilities.gif', 'images/facilities_.gif', 'facilities'],
	['images/services.gif', 'images/services_.gif', 'services'],
	['images/industries.gif', 'images/industries_.gif', 'industries'],
	['images/map.gif', 'images/map_.gif', 'map'],
	['images/contact.gif', 'images/contact_.gif', 'contact']
] ;

for (var i = 0 ; i < imgs.length ; i++) {
	var obj = new Image () ;
		obj.src = imgs [i][1] ;
}

function chgImg (_num, _state) {
	eval ("document.images." + imgs [_num][2] + ".src = '" + imgs [_num][_state] + "'") ;
}

function relPos(which) {
  if (is_nav4) {
    this.x = document.layers[which].pageX;
    this.y = document.layers[which].pageY;
  } else {
    var elem = (1)? document.getElementById(which) : document.all[which];
    this.x = elem.offsetLeft;
    this.y = elem.offsetTop;
    while (elem.offsetParent != null) {
      elem = elem.offsetParent;
      this.x += elem.offsetLeft;
      this.y += elem.offsetTop;
      if (elem.tagName == 'BODY') break;
    }
  }
  return this;
}

function TRun_MoveX(layer,x)
{
	if (is_ie5up) document.all(layer).style.left = x;
	if (is_nav4) document.layers[layer].left = x;
	if (is_nav6up) document.getElementById(layer).style.left = x;
	if (is_opera) document.getElementById(layer).style.pixelLeft = x;
}
function TRun_MoveY(layer,y)
{
	if (is_ie5up) document.all(layer).style.top = y-2;
	if (is_nav4) document.layers[layer].top = y;
	if (is_nav6up) document.getElementById(layer).style.top = y-1;
	if (is_opera) document.getElementById(layer).style.pixelTop = y-1;
}

function TRun_Show(layer)
{
	if (is_ie4up) document.all(layer).style.visibility = "visible" ;
	if (is_nav4) document.layers[layer].visibility = "show" ;
	if (is_nav6up) document.getElementById(layer).style.visibility="visible";
	if (is_opera) document.getElementById(layer).style.visibility="visible";
	//if (vis == true) chgImg (2, 1);
}

function TRun_Hide(layer)
{
	setTimeout("TRun_Hide1('" + layer + "')",100);
}

function TRun_Hide1(layer)
{
	if (vis == false)
		{
			if (is_ie4up) document.all(layer).style.visibility = "hidden" ;
			if (is_nav4) document.layers[layer].visibility = "hide" ;
			if (is_nav6up) document.getElementById(layer).style.visibility="hidden";
			if (is_opera) document.getElementById(layer).style.visibility="hidden";
			//chgImg (2, 0);
			vis = false;
		}	
}
function scInit()
{
	ZeroL = (is_nav4)? new relPos('mark'): new relPos("tdmark");
	TRun_MoveX('top',ZeroL.x + 275);
	TRun_MoveY('top',ZeroL.y + 169);
	if(is_opera) setTimeout("ScCheckResize()",500);  
}

function ScCheckResize()
{
  var ZeroTemp =  new relPos("tdmark");
	if(ZeroL.x != ZeroTemp.x || ZeroL.y != ZeroTemp.y ){
		ZeroL.x = ZeroTemp.x;
		ZeroL.y = ZeroTemp.y;
		TRun_MoveX('top',ZeroL.x-340);
		}
	setTimeout("ScCheckResize()",1000);	
}

function scResize()
{
	if(!is_opera) ZeroL = (is_nav4)? new relPos('mark'): new relPos("tdmark");
	if(is_nav4)	document.location.reload () ;
}
window.onresize = scResize;