function Prepni_mutace(langid2) {

  document.getElementById('currlang').value=langid2;
  document.getElementById('formular').submit();

}

function okno(url,nazev,x,y) {
 xc=(screen.width / 2) - (x/2);
 yc=(screen.height / 2) - (y/2);
 var windows=window.open(url,nazev,'width='+x+',height='+y+',top='+yc+',left='+xc+',menubar=0,toolbar=0,margins=0,scrollbars=1');
}

var lastDiv = '';

function hideDiv() {

    $("#"+lastDiv).hide();
    lastDiv='';
}

function showDiv(id) {
    hideDiv();
    
    lastDiv=id;
    
    $("#div_rychla_volba").show();
}
	 
 function show_RychlaVolba() {
              if (lastDiv != "") {
                  hideDiv();
              }
              else { 
                  showDiv("div_rychla_volba");
              }
}
		   
      $(document).ready(function() {

       $('#checkAll').each(function() {
		$(this).click(function(){

                   $("#formular").toggleCheckboxes();

		   return false;
		})
       })
	   
       $('.date-pick').datePicker({clickInput:true})
	  
     });

	 	 
		    function switchLangs(langid) {
			  if (langid != lastlang) {
			    if (lastlang) {
				  document.getElementById('lang_'+langid).className = "on";
				  document.getElementById('lang_'+lastlang).className = "hidden";
				  document.getElementById('zal_'+langid).className = "active";
				  document.getElementById('zal_'+lastlang).className = "inactive";				  
				} else {
 				  document.getElementById('lang_'+langid).className = "on";
				}
				lastlang = langid;
			   }	
			}