//DHTML Menus

var timer;

function menuOver (divName, image) {
	var divtest;
	divtest = document.getElementById(divName);
	divtest.src = "http://www.air.org/images/leftnav/"+image+"_over.gif";
	clearTimeout(timer);	
}

function menuUp (divName, image) {
	var divtest;
	divtest = document.getElementById(divName);
	divtest.src = "http://www.air.org/images/leftnav/"+image+"_up.gif";
}

function showMenu(menuID) {
	var divs = new Array();
	divs[0] = 'menu1';
	divs[1] = 'menu2';
	divs[2] = 'menu3';
	divs[3] = 'menu4';
	divs[4] = 'menu5';
	divs[5] = 'menu6';
	divs[6] = 'menu7';
	
	var length = divs.length;
	for (i=0;i<length;i++) {
		if (divs[i]!=menuID)
		hideMenu(divs[i]);
	}
	if (document.getElementById) {
		document.getElementById(menuID).style.display = "block";
	}
	clearTimeout(timer);
	}

function hideMenu(menuID) {
	if (document.getElementById) {
		document.getElementById(menuID).style.display = "none";
	}
}

function closeMenu(menuID) {
		var menuID1 = menuID;
		var strclose = "hideMenu('"+menuID1+"')";
//alert(strclose);
		timer = setTimeout(strclose, 850);
}

//Home Page Random Banner

var bannerArray = new Array();
bannerArray[0] = "<style type=\"text/css\">#banner {background: url(http://www.air.org/images/randombanners/bkgrd1.jpg) #476289 right no-repeat;}</style>";
bannerArray[1] = "<style type=\"text/css\">#banner {background: url(http://www.air.org/images/randombanners/bkgrd2.jpg) #476289 right no-repeat;}</style>";
bannerArray[2] = "<style type=\"text/css\">#banner {background: url(http://www.air.org/images/randombanners/bkgrd3.jpg) #476289 right no-repeat;}</style>";
	
var i = 2;
var randomizer = Math.round(Math.random() * i);
var randomBanner = bannerArray[randomizer];