// Courtesy of SimplytheBest.net http://simplythebest.net/info/dhtml_scripts.html / modified by Pete Nash, just var names
function preload() {
  if (!document.images) return;
  var ar = new Array();
  var arguments = preload.arguments;
  for (var i = 0; i < arguments.length; i++) {
    ar[i] = new Image();
    ar[i].src = arguments[i];
  }
}
function reloadPage(init) {
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.pgW=innerWidth; document.pgH=innerHeight; onresize=reloadPage; }}
  else if (innerWidth!=document.pgW || innerHeight!=document.pgH) location.reload();
}
reloadPage(true);
var timerID = null;
drop1state=0
drop2state=0
drop3state=0
drop4state=0
drop5state=0
drop6state=0
drop7state=0
drop8state=0
drop9state=0

n = (document.layers) ? 1:0
ie = (document.all) ? 1:0
function closeall()
{
	if((drop1state==1)|(drop2state==1)|(drop3state==1)|(drop4state==1) |(drop5state==1)|(drop6state==1)|(drop7state==1)|(drop8state==1)|(drop9state==1))
	{
		if (ie){
			home.style.visibility="hidden"; 
			about.style.visibility="hidden"; 
			products.style.visibility="hidden";
			safety.style.visibility="hidden";
			quality.style.visibility="hidden";
			tradegas.style.visibility="hidden";
			careers.style.visibility="hidden"; 
	 	   	vjc.style.visibility="hidden";
			directions.style.visibility="hidden" 
						
			 }
		else if (n){ 
			document.home.visibility="hide"; 
			document.about.visibility="hide"; 	
			document.products.visibility="hide";
			document.safety.visibility="hide";
			document.quality.visibility="hide";
			document.tradegas.visibility="hide";
			document.careers.visibility="hide"; 
			document.vjc.visibility="hide";
			document.directions.visibility="hide" 
				
			
			}	
		drop1state=0; drop2state=0; drop3state=0; drop4state=0; drop5state=0; drop6state=0; drop7state=0; drop8state=0; drop9state=0;
	}
}

function openclose(drop){
	if (drop=="home") { dropstate=drop1state }
	if (drop=="about") { dropstate=drop2state }
	if (drop=="products") { dropstate=drop3state }
	if (drop=="safety") { dropstate=drop4state }
	if (drop=="quality") { dropstate=drop5state }
	if (drop=="tradegas") { dropstate=drop6state }
	if (drop=="careers") { dropstate=drop7state }
	if (drop=="vjc") { dropstate=drop8state }
	if (drop=="directions") { dropstate=drop9state }

	if (ie){	
			home.style.visibility="hidden"; 
			about.style.visibility="hidden"; 
			products.style.visibility="hidden";
 			safety.style.visibility="hidden";
			quality.style.visibility="hidden";			
			tradegas.style.visibility="hidden"; 
			careers.style.visibility="hidden"; 
 			vjc.style.visibility="hidden";
			directions.style.visibility="hidden"  
			
			
		 }
	else if (n){ 
			document.home.visibility="hide"; 
			document.about.visibility="hide"; 	
			document.products.visibility="hide";
			document.safety.visibility="hide";
			document.quality.visibility="hide";
			document.tradegas.visibility="hide";
			document.careers.visibility="hide"; 
			document.vjc.visibility="hide";
			document.directions.style.visibility="hide" 
			 	
			
			}
	drop1state=0; drop2state=0; drop3state=0; drop4state=0; drop5state=0; drop6state=0; drop7state=0; drop8state=0; drop9state=0

	
	
	clearTimeout(timerID);
	if (dropstate==0){
		if (n){ document.layers[drop].visibility="show" }
		else if (ie){ document.all[drop].style.visibility="visible" }

		if (drop=="home") { drop1state=1; }
		if (drop=="about") { drop2state=1; }
		if (drop=="products") { drop3state=1; }
		if (drop=="safety") {drop4state=1; }
		if (drop=="quality") { drop5state=1; }
		if (drop=="tradegas") { drop6state=1; }
		if (drop=="careers") { drop7state=1; }
		if (drop=="vjc") { drop8state=1; }
		if (drop=="directions") { drop9state=1; }
		}
	}

function swapImgRestore() {
	var i,x,a=document.sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
	clearTimeout(timerID);
	timerID = setTimeout("closeall()", 4);
}
function preloadImages() {
  	var d=document; if(d.images){ if(!d.p) d.p=new Array();
    	var i,j=d.p.length,a=preloadImages.arguments; for(i=0; i<a.length; i++)
    	if (a[i].indexOf("#")!=0){ d.p[j]=new Image; d.p[j++].src=a[i];}}
}
function findObj(n, d) {
  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=findObj(n,d.layers[i].document); return x;
}
function swapImage() {
  var i,j=0,x,a=swapImage.arguments; document.sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=findObj(a[i]))!=null){document.sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}