// stops ie background image rollover flicker
try { document.execCommand("BackgroundImageCache", false, true); } catch(err) {}

// rollover for the arrows in the table header
function roll(which, d)
	{
	var direction = (d) ?  "_over" :"_off";
	var navElement = eval(which + direction + ".src");
	document.images[which].src = navElement;
	}

/* preload images */


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

// preload images

var imgs = new Array();

var topnav = new Array 
	( 
	"home", 
	"take_the_pledge", 
	"map_the_pledge", 
	"learn_the_facts", 
	"tips_from_josh", 
	"in_the_news", 
	"about_the_pledge", 
	"partners",
	"blog",
	"surfrider"
	);

imgs[0] = { "allIMGS":topnav, "whichDirectory":"/images/global/nav/"  };

var dirs = new Array ("_off", "_over");

for (xx=0;xx<imgs.length;xx++)
	{
	g = imgs[xx]["allIMGS"];
	d = imgs[xx]["whichDirectory"];
	l = imgs[xx]["allIMGS"].length;
	for (yy=0;yy<l;yy++)
		{
		for (zz=0;zz<dirs.length;zz++)
			{
			i = g[yy]+dirs[zz];
			eval(i+" = new Image;");
			eval(i+".src = \""+d+i+".gif"+"\";");
			}
		}
	}

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


/*

if (document.images)
	{
	
	home_off = new Image;
	home_off.src="images/global/nav/home_off.gif";
	home_over = new Image;
	home_over.src="images/global/nav/home_over.gif";

	take_the_pledge_off = new Image;
	take_the_pledge_off.src="images/global/nav/take_the_pledge_off.gif";
	take_the_pledge_over = new Image;
	take_the_pledge_over.src="images/global/nav/take_the_pledge_over.gif";
	
	map_the_pledge_off = new Image;
	map_the_pledge_off.src="images/global/nav/map_the_pledge_off.gif";
	map_the_pledge_over = new Image;
	map_the_pledge_over.src="images/global/nav/map_the_pledge_over.gif";
	
	learn_the_facts_off = new Image;
	learn_the_facts_off.src="images/global/nav/learn_the_facts_off.gif";
	learn_the_facts_over = new Image;
	learn_the_facts_over.src="images/global/nav/learn_the_facts_over.gif";
	
	tips_from_josh_off = new Image;
	tips_from_josh_off.src="images/global/nav/tips_from_josh_off.gif";
	tips_from_josh_over = new Image;
	tips_from_josh_over.src="images/global/nav/tips_from_josh_over.gif";
	
	in_the_news_off = new Image;
	in_the_news_off.src="images/global/nav/in_the_news_off.gif";
	in_the_news_over = new Image;
	in_the_news_over.src="images/global/nav/in_the_news_over.gif";
	
	about_the_pledge_off = new Image;
	about_the_pledge_off.src="images/global/nav/about_the_pledge_off.gif";
	about_the_pledge_over = new Image;
	about_the_pledge_over.src="images/global/nav/about_the_pledge_over.gif";

	partners_off = new Image;
	partners_off.src="images/global/nav/partners_off.gif";
	partners_over = new Image;
	partners_over.src="images/global/nav/partners_over.gif";



	}

*/