//SigmaNEST Drop Down Menu 1.0
//Last updated: February 17th 2009

function showmenu(elmnt)
{
document.getElementById(elmnt).style.visibility="visible";
}
function hidemenu(elmnt)
{
document.getElementById(elmnt).style.visibility="hidden";
}
function swap(newImage, x) {
	x.src = "../../images/" + newImage;
}
function swapBG(newBG, x) {
	x.style.backgroundImage = "url('../../images/" + newBG + "')";
}
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];}
}
// AC_SW_RunContent( 'codebase','http://download.macromedia.com/pub/shockwave/cabs/director/sw.cab#version=10,1,1,0','width','250','height','250','title','Industrial & Agriculturial Machinery','src','../images/ind_agr_mac','pluginspage','http://www.adobe.com/shockwave/download/' );

function switch1(div) {
var option=['dl1','dl2','dl3','dl4'];
for(var i=0; i<option.length; i++) {
if (document.getElementById(option[i])) {
obj=document.getElementById(option[i]);
obj.style.display=(option[i]==div)? "block" : "none";
}
}
}


// ------------------------------------------------------------------------------------

//	functions to write, read and remove cookies

//	format for creating cookies:
//		document.cookie = 'ppkcookie1=testcookie; expires=Thu, 2 Aug 2001 20:47:11 UTC; path=/'
//		document.cookie = 'ppkcookie2=another test; expires=Fri, 3 Aug 2001 20:47:11 UTC; path=/'

function createCookie (name, value, expirationDays) {

	if (expirationDays) {
		var date = new Date();
		date.setTime (date.getTime ()+ (expirationDays * 24 * 60 *60 * 1000));	//	milliseconds
		var expires = "; expires=" + date.toGMTString ();
	}
	else var expires = "";
	document.cookie = name + "=" + value + expires + "; path=/";
}

//	return the specified cookie's value or "" if it is not found

function readCookie (name) {

	var nameSubstring = name + "=";
	var cookies = document.cookie.split (';');		//	split cookie string into array of cookies
	for (var i = 0; i < cookies.length; i++) {
		var cookie = cookies[i];
		while (cookie.charAt (0) == ' ')
			cookie = cookie.substring (1, cookie.length);
		if (cookie.indexOf (nameSubstring) == 0)
			return cookie.substring (nameSubstring.length, cookie.length);
	}
	return "";
}

//	Set the cookies value to nothing and its expiration in the past.

function eraseCookie(name) {

	createCookie (name, "", -1);
}

//	Determine whether the named cookie exists

function cookieExists (name) {

	if (readCookie (name).length == 0)
		return false;
	else
		return true;
}


// ------------------------------------------------------------------------------------


window.onload=function () {switch1('dl1');}