/**
 * ruzne funkce, utf8 (ěščřžýáíéúů)
 */

// namapovani znaku ceske abecedy na znaky anglicke
var map_chars = function(ch) {
  var chars = {ě:'e',š:'s',č:'c',ř:'r',ž:'z',ý:'y',á:'a',í:'i',é:'e',ú:'u',ů:'u',ň:'n',ť:'t',ď:'d',ó:'o'}
  return chars[ch];
}
// hodnotu elem upravi (diakritika, mezery...) a prekopiruje do target_id
var fill_seo = function(elem, target_id) {
  var str = $(elem).val();
  var target = $('#'+target_id);
  str = str.toLowerCase();
  var tmp = '';
  while(tmp!=str) {
    tmp = str;
    str = str.replace(/[ěščřžýáíéúůňťďó]/, map_chars);
  }
  tmp = '';
  while(tmp!=str) {
    tmp = str;
    str = str.replace(/[^a-z0-9-_]/, '-');
    str = str.replace(/[-]{2,}/, '-');
  }
  var replace = true;
  var t_val = '';
  if((t_val = target.val()) && (t_val != str)) {
    replace = window.confirm('Chcete zaměnit "'+t_val+'"\nza "'+str+'"??');
  }
  if(replace) target.val(str);
}

// nastavi cookie v prohlizeci
function Set_Cookie( name, value, expires, path, domain, secure ) {
  // set time, it's in milliseconds
  var today = new Date();
  today.setTime( today.getTime() );
  
  /*
  if the expires variable is set, make the correct
  expires time, the current script below will set
  it for x number of days, to make it for hours,
  delete * 24, for minutes, delete * 60 * 24
  */
  if ( expires ) {
  expires = expires * 1000 * 60 * 60 * 24;
  }
  var expires_date = new Date( today.getTime() + (expires) );
  
  document.cookie = name + "=" +escape( value ) +
  ( ( expires ) ? ";expires=" + expires_date.toGMTString() : "" ) +
  ( ( path ) ? ";path=" + path : "" ) +
  ( ( domain ) ? ";domain=" + domain : "" ) +
  ( ( secure ) ? ";secure" : "" );
}

// this fixes an issue with the old method, ambiguous values
// with this test document.cookie.indexOf( name + "=" );
function Get_Cookie( check_name ) {
	// first we'll split this cookie up into name/value pairs
	// note: document.cookie only returns name=value, not the other components
	var a_all_cookies = document.cookie.split( ';' );
	var a_temp_cookie = '';
	var cookie_name = '';
	var cookie_value = '';
	var b_cookie_found = false; // set boolean t/f default f
	for ( i = 0; i < a_all_cookies.length; i++ ) {
		// now we'll split apart each name=value pair
		a_temp_cookie = a_all_cookies[i].split( '=' );

		// and trim left/right whitespace while we're at it
		cookie_name = a_temp_cookie[0].replace(/^\s+|\s+$/g, '');

		// if the extracted name matches passed check_name
		if ( cookie_name == check_name )
		{
			b_cookie_found = true;
			// we need to handle case where cookie has no value but exists (no = sign, that is):
			if ( a_temp_cookie.length > 1 )
			{
				cookie_value = unescape( a_temp_cookie[1].replace(/^\s+|\s+$/g, '') );
			}
			// note that in cases where cookie is initialized but no value, null is returned
			return cookie_value;
			break;
		}
		a_temp_cookie = null;
		cookie_name = '';
	}
	if ( !b_cookie_found )
	{
		return null;
	}
}