function selectmenu(tab)
	{
		var tabacc = document.getElementById("tabacc");
		try{
			var tablog = document.getElementById("tablog");
		}catch(e){}
		var tabcon = document.getElementById("tabcon");
		var tabbil = document.getElementById("tabbil");

		var conacc = document.getElementById("contentacc");
		try{
			var conlog = document.getElementById("contentlog");
		}catch(e){}
		var concon = document.getElementById("contentcon");
		var conbil = document.getElementById("contentbil");
		
		if(tab == "tabacc")
		{
			tabacc.style.background = "url(images/selected.gif) no-repeat";
			try{
				tablog.style.background = "url(images/normal.gif) no-repeat";
			}catch(e){}
			tabcon.style.background = "url(images/normal.gif) no-repeat";
			tabbil.style.background = "url(images/normal.gif) no-repeat";

			conacc.style.display = "block";
			conlog.style.display = "none";
			concon.style.display = "none";
			conbil.style.display = "none";

			if(navigator.appName == "Microsoft Internet Explorer")
				conacc.style.margin = "-20px 0 0 0";	
		}
		else if(tab == "tablog")
		{
			tabacc.style.background = "url(images/normal.gif) no-repeat";
			try{
				tablog.style.background = "url(images/selected.gif) no-repeat";
			}catch(e){}
			tabcon.style.background = "url(images/normal.gif) no-repeat";
			tabbil.style.background = "url(images/normal.gif) no-repeat";

			conacc.style.display = "none";
			conlog.style.display = "block";
			concon.style.display = "none";
			conbil.style.display = "none";

			if(navigator.appName == "Microsoft Internet Explorer")
				conlog.style.margin = "-20px 0 0 0";
		}
		else if(tab == "tabcon")
		{
			tabacc.style.background = "url(images/normal.gif) no-repeat";
			try{
			tablog.style.background = "url(images/normal.gif) no-repeat";
			}catch(e){}
			tabcon.style.background = "url(images/selected.gif) no-repeat";
			tabbil.style.background = "url(images/normal.gif) no-repeat";

			conacc.style.display = "none";
			conlog.style.display = "none";
			concon.style.display = "block";
			conbil.style.display = "none";

			if(navigator.appName == "Microsoft Internet Explorer")
				concon.style.margin = "-20px 0 0 0";
		}
		else if(tab == "tabbil")
		{
			tabacc.style.background = "url(images/normal.gif) no-repeat";
			try{
				tablog.style.background = "url(images/normal.gif) no-repeat";
			}catch(e){}
			tabcon.style.background = "url(images/normal.gif) no-repeat";
			tabbil.style.background = "url(images/selected.gif) no-repeat";

			conacc.style.display = "none";
			conlog.style.display = "none";
			concon.style.display = "none";
			conbil.style.display = "block";

			if(navigator.appName == "Microsoft Internet Explorer")
				conbil.style.margin = "-20px 0 0 0";
		}
	}