$(document).ready(function() {
    highlighNavigation();
});

function highlighNavigation() {
	var groupCode = getParameterByName("groupcode1");
	if (groupCode == ""){		
		groupCode = getParameterByName("pageId");
	}
	if (groupCode == ""){		
		groupCode = getParameterByName("campaignId");
		if (groupCode == "mixed_cases"){
			groupCode = "PSC"
		} 
	}
	if (groupCode == ""){		
		groupCode = getParameterByName("promo");
		if (groupCode == "beercase"){
			groupCode = "BEE"
		} 
	}
	if (groupCode){	
		var selector = ".navLink." + groupCode;
		var uri = $(selector).attr("src");
		if (uri){
			$(selector).attr("src",uri.replace(".gif","_on.gif"));
		}

	}
// do the same test for NavLinkList
	if (groupCode){	
		var selector = ".navLinkLast." + groupCode;
		var uri = $(selector).attr("src");
		if (uri){
			$(selector).attr("src",uri.replace(".gif","_on.gif"));
		}

	}
}

function getParameterByName( name ){  
	name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");  
	var regexS = "[\\?&]"+name+"=([^&#]*)";  
	var regex = new RegExp( regexS );  
	var results = regex.exec( window.location.href );  
	if( results == null )    
		return "";  
	else    
		return results[1];
}