var isDOM = (document.getElementById ? true : false);
var isIE4 = ((document.all && !isDOM) ? true : false);
var isNS4 = (document.layers ? true : false);

function getRef(id)
{
  if (isDOM) return document.getElementById(id);
  if (isIE4) return document.all[id];
  if (isNS4) return document.layers[id];
}
function getStyRef(ref) { return ((isNS4 || ref == null) ? ref : ref.style); }
function getSty(id) { var p=getRef(id); return getStyRef(p); };



function menuGo(text){
  if((text.substr(0,4).toLowerCase())=="http"){
  	newWinRes(text);
  }else{ window.location.replace(text); };
}
function newWinRes(newUrl) { window.open(newUrl,"",'toolbar=1,location=1,directories=1,status=1,menubar=1,scrollbars=1,resizable=1'); };

function bookmark()
{
 window.external.AddFavorite("http://www.Laviny.cz","Laviny.cz - Laviny informací o horách");
}

function setHomePage(page)
{
 page.style.behavior='url(#default#homepage)';
 page.setHomePage('http://www.laviny.cz');
}

function sendLink(odkaz)
{
 odkaz_string= new String(odkaz);

 odkaz_array=odkaz_string.split('');
 for (var i=0;i<odkaz_string.length;i++)
   {
    if(odkaz_array[i]=="&")
      {//alert(odkaz_array[i]);
       odkaz_array[i]='%26';
       //alert(odkaz_array[i]);
      }
   }
 odkaz_string=odkaz_array.join('');
 document.location = "mailto:?subject=Odkaz%20na%20laviny.cz&body=Odkaz%20na%20server%20Laviny.cz%20:%0D%0A"+odkaz_string+"%0D%0ALaviny.cz%20-%20Laviny%20informací%20o%20horách";
}

function printPage()
{
  window.print();
}

function GalWin(cesta,x,y)
{
var WindowName;
var l = (screen.availWidth-10 - x) / 2;
var t = (screen.availHeight-20 - y) / 2;
WindowName=window.open('','_blank',"toolbar=0,location=0,scrollbars=0,width="+x+",height="+y+",resizable=0,left="+l+",top="+t);
WindowName.document.open();
WindowName.document.write('<HTML><HEAD><TITLE>Laviny.cz: Galerie</TITLE></HEAD>');
WindowName.document.write('<BODY TOPMARGIN=0 LEFTMARGIN=0 MARGINWIDTH=0 MARGINHEIGHT=0><A HREF="javascript:window.close();" TITLE="Klikni pro uzavreni okna."><IMG SRC="',cesta,'" BORDER="0"></A>');
WindowName.document.write('</BODY></HTML>');
WindowName.document.close();
}