var pwd = "";

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (pwd != changeImages.arguments[0]) {
		if (document.images && (preloadFlag == true)) {
			for (var i=0; i<changeImages.arguments.length; i+=2) {
				document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
			}
		}
	}
}

var preloadFlag = false;

function preloadImages() {
	if (document.images) {
		
		home_over 			= newImage("/images/nav/home_over.gif");
		market_over       = newImage("/images/nav/market_over.gif");
		future_over        = newImage("/images/nav/future_over.gif");
		accelerator_over      = newImage("/images/nav/accelerator_over.gif");
		plan_over         = newImage("/images/nav/plan_over.gif");
		success_over           = newImage("/images/nav/success_over.gif");
		about_over            = newImage("/images/nav/about_over.gif");
		news_over           = newImage("/images/nav/news_over.gif");
		contactus_over            = newImage("/images/nav/contactus_over.gif");
		potential_over		= newImage("/images/potential_over.jpg");
		preloadFlag = true;
	}
	
	var delim = "";
	var dirtest = document.location.pathname.split('/');
	var delim = dirtest.length > 2 ? '/' : '.';
	var directory = document.location.pathname.split(delim);
		if (dirtest.length == 3) {
		
		pwd = directory[directory.length-2]};
		
	if (dirtest.length == 4) {
	
		pwd = directory[directory.length-3]};
	
	if (pwd == "market")   { document.market.src   = "/images/nav/market_down.gif" }
	if (pwd == "future")    { document.future.src    = "/images/nav/future_down.gif"  }
	if (pwd == "accelerator")    { document.accelerator.src    = "/images/nav/accelerator_down.gif"  }
	if (pwd == "plan")    { document.plan.src    = "/images/nav/plan_down.gif"  }	
	if (pwd == "success")    { document.success.src    = "/images/nav/success_down.gif"  }
	if (pwd == "about")    { document.about.src    = "/images/nav/about_down.gif"  }	
	if (pwd == "news")    { document.news.src    = "/images/nav/news_down.gif"  }
	if (pwd == "contactus")    { document.contactus.src    = "/images/nav/contactus_down.gif"  }	

}