// Menus Functions

xMousePos = 0; // Horizontal position of the mouse on the screen
yMousePos = 0; // Vertical position of the mouse on the screen
xMousePosMax = 0; // Width of the page
yMousePosMax = 0; // Height of the page
var MenuFlag = 0;
var MenuCloseDelay = 100;
var OpenMenuName;

function getAbsoluteLeft(o)
{
	oLeft = o.offsetLeft
	while(o.offsetParent!=null)
	{
		oParent = o.offsetParent
		oLeft += oParent.offsetLeft
		o = oParent
	}
	return oLeft
}

function getAbsoluteTop(o)
{
	oTop = o.offsetTop
	while(o.offsetParent!=null)
	{
		oParent = o.offsetParent
		oTop += oParent.offsetTop
		o = oParent
	}
	return oTop
}

function setMenuFlagOn()
{
	MenuFlag = 1;
}

function setMenuFlagOff()
{
	MenuFlag = 0
}

function showMenu(o,layerName)
{
	OpenMenuName = layerName;
	var menu = document.getElementById(layerName);

	menu.style.left = (getAbsoluteLeft(o)-0) +"px";
	if(navigator.appVersion.indexOf("MSIE")!=-1&&navigator.appVersion.indexOf("Windows")>-1){
			menu.style.top = (getAbsoluteTop(o)+34) +"px";
	} else {
			menu.style.top = (getAbsoluteTop(o)+11) +"px";
	}
	menu.style.visibility = 'visible';

	setMenuFlagOn();
	window.setTimeout('checkMenu()', MenuCloseDelay);
}	

function checkMenu()
{
	var menu = document.getElementById(OpenMenuName)

	if(MenuFlag == 0)
	{
		menu.style.visibility = 'hidden';
	}
	else
	{
		window.setTimeout('checkMenu()', MenuCloseDelay);
	}
}
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
function loadMenuImages(){
	MM_preloadImages('images/menubar/home-btn-over.gif','images/menubar/products-btn-over.gif',
					 'images/menubar/services-btn-over.gif','images/menubar/company-btn-over.gif',
					 'images/menubar/contact-btn-over.gif','images/submenu/imagery-btn-over.png');
}