function wo(href,width,height)
{
	window.open(href,null,"height="+(height+50)+",width="+(width+40)+",status=no,toolbar=no,scrollbars=yes,resiable=1,menubar=no,left="+Math.floor((screen.width-width)/2)+",top="+Math.floor((screen.height-height)/2));
}

function wo2(href,width,height)
{
	window.open(href,1,"height="+(height+50)+",width="+(width+40)+",status=no,toolbar=no,scrollbars=yes,resiable=1,menubar=no,left="+Math.floor((screen.width-width)/2)+",top="+Math.floor((screen.height-height)/2));
}

function ays(address){
  if(confirm("Jste si jistý?")){
    window.location.href=address;
  }
}

function mail_link(uid,domain,text,home_url){
  var zavinac = "@"
  var link
  text=text.replace("_at_","<img src='"+home_url+"pics/zavinac.gif' alt='zavinac' />")
  link = "<a class='small' href='mailto:"+uid+""+zavinac+""+domain+"'>"+text+"</a>"
  document.write(link)
  
}

function showhide(elementid) 
{
  if(document.getElementById(elementid).style.display=='block')
    document.getElementById(elementid).style.display = 'none';
  else
    document.getElementById(elementid).style.display = 'block';
}

function show(elementid) 
{
    document.getElementById(elementid).style.display = 'block';
}

function hide(elementid) 
{
    document.getElementById(elementid).style.display = 'none';
}

function submitOnEnter(e,elementid){
var keynum
if(window.event) // IE
  {
  keynum = e.keyCode;
  }
else if(e.which) // Netscape/Firefox/Opera
  {
  keynum = e.which;
  }
	if(keynum==13){
		document.getElementById(elementid).submit();
	}
}