// Preloads common navigation images.

var baseImageUrl = "";

function preloadMainNavImages(url)
{
	baseImageUrl = url;
	var preloadedImages = new Array();	
	var preloadNames = new Array('nav_home_hover.gif', 'nav_hillary_hover.gif', 'nav_news_hover.gif', 'nav_blog_hover.gif', 'nav_action_hover.gif', 'nav_contribute_hover.gif', 'dropDownBG.png', 'dropDownBG_Bottom.png', 'dropDownBG_Hover.png', 'dropDownBG_Hover_Bottom.png' );
	
	for (i=0; i<preloadNames.length; i++)
	{
		preloadedImages[i] = new Image();
		preloadedImages[i].src = baseImageUrl + preloadNames[i];
	}
}


// Used for rollovers in IE6 since it doesn't support li:hover
sfHover = function() {
	var sfEls = document.getElementById("tabs").getElementsByTagName("li");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}

if (window.attachEvent) window.attachEvent("onload", sfHover);