var all_sections = new Array("page",
							"garden",
							"floral",
							"proven_winners",
							"weddings",
							"events",
							"garden_accessories",
							"service",
							"about_us");

var nav_classes = new Array();
nav_classes["page"] = "topDarkGreenGradient";
nav_classes["garden"] = "topLightGreenGradient";
nav_classes["floral"] = "topPinkGradient";
nav_classes["proven_winners"] = "topLightBlueGradient";
nav_classes["weddings"] = "topOrangeGradient";
nav_classes["events"] = "topPurpleGradient";
nav_classes["garden_accessories"] = "topYellowGradient";
nav_classes["service"] = "topRedGradient";
nav_classes["about_us"] = "topGreenGradient";

function highlight_nav(which_section) {
	// revert to non-selected background for all sections

	if (which_section == "floral_shop")
		which_section = "floral";

	var num_sections = all_sections.length;

	for (var i = 0; i < num_sections; i++) {
		// highlight selected section
		nav_top = document.getElementById("nav_top_" + all_sections[i]);
		nav_middle = document.getElementById("nav_middle_" + all_sections[i]);
		nav_bottom1 = document.getElementById("nav_bottom_" + all_sections[i] + "1");
		nav_bottom2 = document.getElementById("nav_bottom_" + all_sections[i] + "2");
		nav_bottom3 = document.getElementById("nav_bottom_" + all_sections[i] + "3");

		if (which_section == all_sections[i]) {
			nav_top.className = nav_classes[all_sections[i]];
			nav_middle.style.backgroundColor = "#424542";
			nav_bottom1.style.backgroundColor = "#424542";
			nav_bottom2.style.backgroundColor = "#424542";
			nav_bottom3.style.backgroundColor = "#424542";
		}
		else {
			nav_top.className = "";
			nav_middle.style.backgroundColor = "#CFDCCA";
			nav_bottom1.style.backgroundColor = "#CFDCCA";
			nav_bottom2.style.backgroundColor = "#CFDCCA";
			nav_bottom3.style.backgroundColor = "#CFDCCA";
		}
	}
}