function imgOff(imgName) {
			if (document.images) {
				document[imgName].src = eval(imgName + "Off.src");
			}
	}
	function imgRoll(imgName) {
			if (document.images) {
				document[imgName].src = eval(imgName + "Roll.src");
			}
	}

	if (document.images) {
		
		//tab navigation
	
		aboutOff = new Image();
		aboutOff.src = "/images/mainnav_about_off.gif";	
		aboutRoll = new Image();
		aboutRoll.src = "/images/mainnav_about_roll.gif";
		
		grantmakingOff = new Image();
		grantmakingOff.src = "/images/mainnav_grantmaking_off.gif";	
		grantmakingRoll = new Image();
		grantmakingRoll.src = "/images/mainnav_grantmaking_roll.gif";	
		
		teachingOff = new Image();
		teachingOff.src = "/images/mainnav_teaching_off.gif";	
		teachingRoll = new Image();
		teachingRoll.src = "/images/mainnav_teaching_roll.gif";	
		
		healthOff = new Image();
		healthOff.src = "/images/mainnav_health_off.gif";	
		healthRoll = new Image();
		healthRoll.src = "/images/mainnav_health_roll.gif";	
		
		newsOff = new Image();
		newsOff.src = "/images/mainnav_news_off.gif";	
		newsRoll = new Image();
		newsRoll.src = "/images/mainnav_news_roll.gif";	
		
		publicationsOff = new Image();
		publicationsOff.src = "/images/mainnav_publications_off.gif";	
		publicationsRoll = new Image();
		publicationsRoll.src = "/images/mainnav_publications_roll.gif";	
		
	}
	
	function fixHrefs() {
		var aTags = document.getElementsByTagName("a");
 		for(var i=0, len = aTags.length; i < len; i++) {
 			if (aTags[i].target != "_blank" && aTags[i].href.indexOf("javascript") == -1 ) {
	 			aTags[i].href = aTags[i].href.replace("coloradohealth.org","coloradohealthreportcard.org");
 			}

 		}
 }