function swap_btn(obj, name) {
	obj.style.background='url(pics/buttons/' + name + ')';
}

function link(name, category) {
	if (category == null){
		category = ""; 
	}
 
	var tpName = "";
	
	for (i=0; i<7; i++) {
		switch (i) {
			case 0:
				tpName = "home";
				break;
			case 1:
				tpName = "about";
				break;
			case 2:
				tpName = "productsindividual";
				break;
			case 3:
				tpName = "productsstandard";
				break;
			case 4:
				tpName = "productshealth";
				break;
			case 5:
				tpName = "partner";
				break;
			case 6:
				tpName = "sale";
				break;
			default:
			  tpName = "home";
		}
		
		document.getElementById("td_" + tpName).style.background = "url(pics/buttons/" + tpName + ".png)";
		document.getElementById("td_" + tpName).onmouseover = new Function("swap_btn(this,\'" + tpName + "_out.png\')");
		document.getElementById("td_" + tpName).onmouseout = new Function("swap_btn(this,\'" + tpName + ".png\')");
	}
	
	document.getElementById("td_" + name).style.background = "url(pics/buttons/" + name + "_out.png)";
	document.getElementById("td_" + name).onmouseover = "";
	document.getElementById("td_" + name).onmouseout = "";
	
	document.getElementById("img_logo").src = "pics/text/wiedemann_" + name + ".png";

	if (category == "") {
		document.getElementById("frm_main").src = name + ".html";
	}
	else {
		document.getElementById("frm_main").src = category + ".html";
	}
	document.getElementById("frm_text").src = name + "_text.html";
	document.getElementById("frm_navigation").src = name + "_navigation.html";
	
	switch (name) {
		case "home":
			document.getElementById("td_sq_a2").style.background = "url(pics/beds/1/squares/a2.png)";
			break;
		case "about":
			document.getElementById("td_sq_a2").style.background = "url(pics/beds/2/squares/a2.png)";
			break;
		case "productsindividual":
			document.getElementById("td_sq_a2").style.background = "url(pics/beds/3/squares/a2.png)";
			break;
		case "productsstandard":
			document.getElementById("td_sq_a2").style.background = "url(pics/beds/4/squares/a2.png)";
			break;
		case "productshealth":
			document.getElementById("td_sq_a2").style.background = "url(pics/beds/5/squares/a2.png)";
			break;
		case "partner":
			document.getElementById("td_sq_a2").style.background = "url(pics/beds/6/squares/a2.png)";
			break;
		case "sale":
			document.getElementById("td_sq_a2").style.background = "url(pics/beds/7/squares/a2.png)";
			break;
		default:
	}
}

function gup(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];
	}
}

function do_redirect() {
	var param_navigate_to = gup('navigateto');
	var param_category = gup('category');

	if (param_navigate_to != "") {
		link(param_navigate_to, param_category);
	}
}