function mycontrol(myform){
  var err = '';
  
  if(myform.firma.value == ''){ err += "musíte vyplnit název firmy\n";}
  if(myform.osoba.value == ''){ err += "musíte vyplnit kontaktní osobu\n";}
  if(myform.adresa.value == ''){ err += "musíte vyplnit adresu\n";}
  if(myform.telefon.value == ''){ err += "musíte vyplnit telefon\n";}
  if(myform.email.value == ''){ err += "musíte vyplnit e-mailovou adresu\n";}
  if(myform.poptavka.value == ''){ err += "musíte vyplnit text poptávky/zprávy\n";}
   if(myform.poptavka.value == ''){ err += "musíte vyplnit text poptávky/zprávy\n";}
   if(myform.pr.value != myform.cislo.value){ err += "nesouhlasí kód\n";}
  
  if(err != ''){
    alert("Formulář nebyl odeslán:\n\n" + err);
    return false;
  }
  
  alert("Vaše zpráva byla úspěšně odeslána. Děkujeme.");
  return true;
}


function mouseX(evt) {
if (evt.pageX) return evt.pageX;
else if (evt.clientX)
   return evt.clientX + (document.documentElement.scrollLeft ?
   document.documentElement.scrollLeft :
   document.body.scrollLeft);
else return null;
}

function mouseY(evt) {
if (evt.pageY) return evt.pageY;
else if (evt.clientY)
   return evt.clientY + (document.documentElement.scrollTop ?
   document.documentElement.scrollTop :
   document.body.scrollTop);
else return null;
}






function showDetail(url,w,h){

	wasOpen  = false;
  if ( (0<w) && (0<h) )
  {
	 win = window.open(url,'detail','left='+(screen.width/2-w/2)+', top='+(screen.height/2-h/2)+', width='+w+',height='+h+',toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no');
	}
	else
	{
    win = window.open(url);
  }
	win.focus();
  return (typeof(win)=='object')?true:false;

}       




function showBubble(text, event)
{
	document.getElementById('bubble').innerHTML=text;
	document.getElementById('bubble').style.display='block';
	document.getElementById('bubble').style.margin=(mouseY(event)-80)+'px 0 0 '+(mouseX(event)-180)+'px';
}

function hideBubble()
{
	document.getElementById('bubble').style.display='none';
}

 function Rozbal(id)
 {
  var obj = document.getElementById('elem'+id);
  if(obj.style.display == 'none')
   obj.style.display = 'block';
  else
   obj.style.display = 'none'
 }
 function SbalVse()
  {
 	  var elems =new Array(1, 2, 3, 301, 3011, 302, 303, 304, 3041, 305, 306, 3061, 3062, 3063, 4, 401, 402, 403, 404,405,406,407,408, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,16);
     for(i=0; i < elems.length; i++)
     {
  	   var obj = document.getElementById('elem'+ elems[i]);
       obj.style.display = 'none';
  	 }
    
  }
 function SbalVse2()
  {
 	  //var elems =new Array(1, 2, 3, 301, 3011, 302, 303, 304, 3041, 305, 306, 3061, 3062, 3063, 4, 401, 402, 403, 404,405,406,407,408, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15);
     for(i=1; i < 28; i++)
     {
  	   var obj = document.getElementById('elem'+ i);
       obj.style.display = 'none';
  	 }
    
  }
  function RozbalVse()
  {
 	  var elems =new Array(1, 2, 3, 301, 3011, 302, 303, 304, 3041, 305, 306, 3061, 3062, 3063, 4, 401, 402, 403, 404,405,406,407,408, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,16);
     for(i=0; i < elems.length; i++)
     {
  	   var obj = document.getElementById('elem'+ elems[i]);
       obj.style.display = 'block';
  	 }
    
  }
    function RozbalVse2()
  {
 	  //var elems =new Array(1, 2, 3, 301, 3011, 302, 303, 304, 3041, 305, 306, 3061, 3062, 3063, 4, 401, 402, 403, 404,405,406,407,408, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15);
     for(i=1; i < 28; i++)
     {
  	   var obj = document.getElementById('elem'+ i);
       obj.style.display = 'block';
  	 }
    
  }