function remove_apply(calendar_id)
{
var url="/ajax_functions.php";
url=url+"?action=remove_apply";
url=url+"&calendar_id="+calendar_id;
FT3=GetXmlHttpObject();
FT3.open("GET",url,true);
FT3.onreadystatechange = function(){remove_apply_state_change(calendar_id);};
FT3.send(null);
}

function remove_apply_state_change(calendar_id)
{
    if (FT3.readyState == 1) {
    }

    if (FT3.readyState == 4) {
    if (FT3.status == 200) {
        if(FT3.responseText=='1')
        document.getElementById('status_text_'+calendar_id).innerHTML='Lejelentkeztél';
      }
    }
}

function update_exam_time(calendar_id,subject_id)
{
var url="/ajax_functions.php";
url=url+"?action=update_exam_time";
url=url+"&calendar_id="+calendar_id;
FT3=GetXmlHttpObject();
FT3.open("GET",url,true);
FT3.onreadystatechange = function(){update_exam_time_state_change(subject_id,calendar_id);};
FT3.send(null);
}

function update_exam_time_state_change(subject_id,calendar_id)
{
    if (FT3.readyState == 1) {
    document.getElementById('status_exam_'+subject_id).innerHTML='<img style="float:center;" src="/images/loading.gif" />';
    }

    if (FT3.readyState == 4) {
    if (FT3.status == 200) {
        if(FT3.responseText!='0') {
       	document.getElementById('exam_application_'+subject_id).innerHTML='';
       	get_exam_times(subject_id);
        document.getElementById('status_exam_'+subject_id).innerHTML='';
        document.getElementById('students_'+subject_id).innerHTML=FT3.responseText;
        hide('new_exam_application_'+subject_id);
//        hide('exam_ul_'+subject_id);
//        document.getElementById('status_text_'+original_calendar_id).innerHTML='<a href="javascript:void(0);" onclick="update_exam_time('+original_calendar_id+','+subject_id+','+calendar_id+');">Jelentkezek</a>';
//        document.getElementById('status_text_'+calendar_id).innerHTML=' - Lejelentkezés - ';
        }
      }
    }
}



function get_hours_to_date_picker(input)
{
  var input_data='<table style="width:100%;"><tr><td colspan="2"><b>'+document.getElementById('date_picker').date+'</b> / </td></tr>';
     input_data+='<tr><td style="text-align:right;">óra: </td><td>';
     input_data+='<select id="hour">';
     for(i=0;i<25;i++)
     {
     value=((i<10)?"0":"")+i;
     input_data+='<option value="'+value+'" '+((i==8)?"selected=selected":"")+'>'+value+'</option>';
     }
     input_data+='</select></td></tr>';

     input_data+='<tr><td style="text-align:right;">perc: </td><td>';
     input_data+='<select id="minute">';
     for(i=0;i<61;i++)
     {
     value=((i<10)?"0":"")+i;
     input_data+='<option value="'+value+'">'+value+'</option>';
     }
     input_data+='</select></td></tr>';
//     value_of_text=document.getElementById('date_picker').date;
     input_data+='<tr><td colspan="2"><input class="button2" onclick="set_value()" type="button" value="Felveszem"></td></tr>';
     input_data+='</table>';
     document.getElementById('date_picker').innerHTML=input_data;
}

function set_value()
{
  text_id=document.getElementById('date_picker').text_id;
  document.getElementById(text_id).value=document.getElementById('date_picker').date+' '+document.getElementById('hour').value+':'+document.getElementById('minute').value+':00';
  document.getElementById('date_picker').style.top='-500px';
}

function is_filled(name)
{
if(document.getElementById(name).value=='')
{
document.getElementById('error_'+name).innerHTML='Töltsd ki';
document.getElementById('error_'+name).className='error_form';
document.getElementById(name).style.border='1px solid red';
return false;
}
else
{
document.getElementById('error_'+name).innerHTML='&nbsp;';
document.getElementById('error_'+name).className='success_form';
document.getElementById(name).style.border='1px solid green';
return true;
}
}