isamap = new Object();
isamap[0] = "_df"
isamap[1] = "_ov"
isamap[2] = "_ot"
isamap[3] = "_dn"

function isimgact(id, act)
{
	if(document.images) document.images[id].src = eval( "isimages." + id + isamap[act] + ".src");
}

if (document.images) { // ensure browser can do rollovers.
isimages = new Object();
isimages.tlacitko_df = new Image();
isimages.tlacitko_df.src = "images/nav_1_2_info.gif";
isimages.tlacitko_ov = new Image();
isimages.tlacitko_ov.src = "images/nav_1_2_info2.gif";
isimages.tlacitko1_df = new Image();
isimages.tlacitko1_df.src = "images/nav_1_3_plus.gif";
isimages.tlacitko1_ov = new Image();
isimages.tlacitko1_ov.src = "images/nav_1_3_plus2.gif";
isimages.tlacitko6_df = new Image();
isimages.tlacitko6_df.src = "images/nav_1_3_free.gif";
isimages.tlacitko6_ov = new Image();
isimages.tlacitko6_ov.src = "images/nav_1_3_free2.gif";
isimages.tlacitko2_df = new Image();
isimages.tlacitko2_df.src = "images/nav_1_4_packet.gif";
isimages.tlacitko2_ov = new Image();
isimages.tlacitko2_ov.src = "images/nav_1_4_packet2.gif";
isimages.tlacitko3_df = new Image();
isimages.tlacitko3_df.src = "images/nav_1_5_mail.gif";
isimages.tlacitko3_ov = new Image();
isimages.tlacitko3_ov.src = "images/nav_1_5_mail2.gif";
isimages.tlacitko4_df = new Image();
isimages.tlacitko4_df.src = "images/nav_1_6_persn.gif";
isimages.tlacitko4_ov = new Image();
isimages.tlacitko4_ov.src = "images/nav_1_6_persn2.gif";
isimages.tlacitko5_df = new Image();
isimages.tlacitko5_df.src = "images/nav_1_7_kont.gif";
isimages.tlacitko5_ov = new Image();
isimages.tlacitko5_ov.src = "images/nav_1_7_kont2.gif";
}

function WinOpen(WinURL,WinName,Width,Height)
	{
	W=Width+20;
	H=Height+20;
	Params="status=no,resizable=no,menubar=no,scrollbars=yes,toolbar=no,height="+H+",width="+W+"";
	var Win=window.open(WinURL,WinName,Params);
	}  
	
function addSidebar(add_name, add_url) 
	{
		if ((typeof window.sidebar == "object") && (typeof window.sidebar.addPanel == "function")) {
			window.sidebar.addPanel(add_name,add_url,"");
		} else {
			window.alert("Váš prohližeč nepodporuje tuto funkci. Zkuste Mozillu.");
		}
	}