/*
  +---------------------------------------------------------------------------+
  | Europa-Feriendorf (frontend)									  		  |
  +---------------------------------------------------------------------------+
  | Filename: feriendorf.js											 	 	  |
  | Version: 1.0.5															  |
  | Created: 18-12-2003											  	  		  |
  | Revised: 8-2-2005											  			  |
  +---------------------------------------------------------------------------+
  | Copyright (c) 2003-2005: Code 9 Media (http://www.code9.nl)				  |
  +---------------------------------------------------------------------------+
  | This software is protected by copyright law and international treaties.	  |
  | Unauthorized modification, reproduction or distribution of this software, |
  | or any portion of it, may result in severe civil and criminal penalties,  |
  | and will be prosecuted to the maximum extent possible under the law.	  |
  +---------------------------------------------------------------------------+
*/

   /**
   	* {{{ Opens a new window
   	*
   	* @access	private
   	* @param	string
	*/
	function Ef_Window ( filename )
	{
		var winleft = 0;
		var wintop = 0;
		if ( screen.width ) {
			winleft = ( screen.width - 450 ) / 2;
			wintop = ( screen.height - 525 ) / 2;
			if ( winleft < 0 ) winleft = 0;
			if ( wintop < 0 ) wintop = 0;
		}
		var features =
			'toolbar=no,location=no,directories=no,status=no,menubar=no,' + 
			'scrollbars=no,resizable=no,width=450,height=525,top=' +
			wintop + ',left=' + winleft;
		var openwin = window.open(filename, "Fototour", features);
		( openwin.opener == null ) ? openwin.opener = window : openwin.focus();
	}
   /** end of function }}} */


   /**
   	* {{{ Sets the values of the search form
   	*
   	* @access	public
	*/
	function Ef_InitSearch ( )
	{
		var theform = document.forms['frm_search'];
		var index = theform.smonth.selectedIndex;
		var sdate = theform.smonth.options[index].value.split(/#/);
		index = theform.sday.selectedIndex;
		var sday = theform.sday.options[index].value;
		if ( sday.length == 1 ) {
			sday = '0' + sday;
		}
		if ( sdate[0].length == 1 ) {
			sdate[0] = '0' + sdate[0];
		}
		var params = '?sdate=' + sdate[1] + sdate[0] + sday;

		index = theform.emonth.selectedIndex;
		var edate = theform.emonth.options[index].value.split(/#/);
		index = theform.eday.selectedIndex;
		var eday = theform.eday.options[index].value;
		if ( eday.length == 1 ) {
			eday = '0' + eday;
		}
		if ( edate[0].length == 1 ) {
			edate[0] = '0' + edate[0];
		}
		params += '&edate=' + edate[1] + edate[0] + eday;
		params += '&persons=' + theform.persons.value;
		params += '&start=' + theform.start.value;
		document.location.href = theform.action + params;
	}
   /** end of function }}} */


	function Ef_BrowseResults ( )
	{
		var theform = document.forms['frm_browse_search'];
		var params = '?sdate=' + theform.sdate.value;
		params += '&edate=' + theform.edate.value;
		params += '&persons=' + theform.persons.value;
		var index = theform.page.selectedIndex;
		var start = theform.page.options[index].value;
		params += '&start=' + start;
		document.location.href = theform.action + params;
	}
   /** end of function }}} */


	function Ef_ReturnToResults ( )
	{
		var theform = document.forms['frm_return_search'];
		var params = '?sdate=' + theform.sdate.value;
		params += '&edate=' + theform.edate.value;
		params += '&persons=' + theform.persons.value;
		params += '&start=' + theform.start.value;
		document.location.href = theform.action + params;
	}
   /** end of function }}} */


   /**
   	* {{{ Sets the form's destination and submits it!
   	*
   	* @access	public
   	* @param	string
	*/
	function Ef_SubmitForm ( action )
	{
		var theform = document.forms['frm_input'];
		theform.action = action;
		theform.submit();
	}
   /** end of function }}} */


	function Ef_ReturnToCabin ( Id )
	{
		var theform = document.forms['frm_input'];
		var params = '?cmd=detail&id=' + Id + '&abort=true';
		document.location.href = theform.action + params;
	}
   /** end of function }}} */


   /**
    * {{{ Retrieves the currently selected date in a proper format
    *
    * @access	private
    * @params	object, object
    * @return	array
    */
	function Ef_GetDate ( sel_day, sel_month )
	{
		var ay_date = new Array();
		var index = sel_month.selectedIndex;
		ay_date = sel_month.options[index].value.split(/#/);
		index = sel_day.selectedIndex;
		ay_date.push(sel_day.options[index].value);
		for ( index in ay_date ) {
			ay_date[index] = parseInt(ay_date[index]);
		}
		return ay_date;
	}
   /** end of function }}} */


   /**
    * {{{ Calculates the number of days in the given month
    *
    * @access	private
    * @params	int, int
    * @return	int
    */
	function Ef_GetNumDaysInMonth ( year, month )
	{
    	var date_cur  = new Date(year, month, 1).getTime();
    	var date_next = new Date(year, month + 1, 1).getTime();
		var temp = date_next - date_cur - 3600000; /** one hour */
		return Math.ceil(temp / 86400000); /** one day */
	}
   /** end of function }}} */


   /**
    * {{{ Validates the given date and sets a correct date in case of failure
    *
    * @access	private
    * @params	bool, array, object, object
    * @return	array
    */
	function Ef_SetDate ( reset, ay_date, sel_day, sel_month )
	{
		var size = sel_month.options.length;
		var nextselect = sel_month.selectedIndex + 1;
		var date = new Date(ay_date[1], ay_date[0] - 1, ay_date[2]);
		var temp = date.getDate();
		if ( reset ) {
			sel_day.selectedIndex = temp - 1;
			ay_date[2] = temp;
		} else if ( temp != ay_date[2] ) {
			var daystr = '1,2,3,4';
			if (( daystr.indexOf(temp) != -1 ) && ( nextselect == size )) {
				temp = Ef_GetNumDaysInMonth(ay_date[1], ay_date[0]);
			}
			sel_day.selectedIndex = temp - 1;
			ay_date[2] = temp;
		}
		temp = date.getMonth() + 1;
		if ( reset ) {
			var selected = size - 1;
			var monthstr = temp + '#' + ay_date[1];
			for ( var index = 0; index < size; ++index ) {
				var value = sel_month.options[index].value;
				if ( value == monthstr ) {
					selected = index;
					break;
				}
			}
			sel_month.selectedIndex = selected;
			ay_date[0] = temp;
		} else if ( temp != ay_date[0] ) {
			var selected = ( nextselect < size ) ? nextselect : size - 1;
			sel_month.selectedIndex = selected;
			ay_date[0] = temp;
		}
		return ay_date; /** possibly changed */
	}
   /** end of function }}} */


   /**
    * {{{ Adjusts the dates on selection (leap years, can't select 31th April, etc.)
    *
    * @access	public
    * @params	bool, bool
    */
	function Ef_AdjustDates ( from_changed, is_search )
	{
		var theform = ( is_search )
			? document.forms['frm_search']
			: document.forms['frm_input'];

		if ( from_changed )	{
			var ay_from = Ef_GetDate(theform.sday, theform.smonth);
			ay_from = Ef_SetDate(false, ay_from, theform.sday, theform.smonth);
			var ay_to = Ef_GetDate(theform.eday, theform.emonth);
			if ((( ay_to[2] <= ay_from[2] ) && ( ay_to[0] <= ay_from[0] )
			  && ( ay_to[1] <= ay_from[1] ))
			  || (( ay_to[0] < ay_from[0] ) && ( ay_to[1] <= ay_from[1] ))
			  || ( ay_to[1] < ay_from[1] )) {
				ay_to = ay_from;
				Ef_SetDate(true, ay_to, theform.eday, theform.emonth);
			}
		} else {
			var ay_to = Ef_GetDate(theform.eday, theform.emonth);
			ay_to = Ef_SetDate(false, ay_to, theform.eday, theform.emonth);
			var ay_from = Ef_GetDate(theform.sday, theform.smonth);
			if ((( ay_from[2] >= ay_to[2] ) && ( ay_from[0] >= ay_to[0] )
			  && ( ay_from[1] >= ay_to[1] ))
			  || (( ay_from[0] > ay_to[0] ) && ( ay_from[1] >= ay_to[1] ))
			  || ( ay_from[1] > ay_to[1] )) {
				ay_from = ay_to;
				//--ay_from[2];
				Ef_SetDate(true, ay_from, theform.sday, theform.smonth);
			}
		}
	}
   /** end of function }}} */


	function Ef_Stripe ( )
	{
		var evenColor = '#fff';
		var oddColor = '#ff3';

		var size = arguments.length;
		for ( var index = 0; index < size; ++index ) {
			var even = false;
			var table = document.getElementById(arguments[index]);
		    if ( !table ) {
		    	continue; /** mmm, try the rest */
		    }
			var tbodies = table.getElementsByTagName('tbody');
			var isize = tbodies.length;
			for ( var i = 0; i < isize; ++i ) {
				var trs = tbodies[i].getElementsByTagName('tr');
				var jsize = trs.length;
				for ( var j = 0; j < jsize; ++j ) {
					if ( trs[j].style.backgroundColor ) {
						continue;
					}
					var tds = trs[j].getElementsByTagName('td');
					var hsize = tds.length;
					for ( var h = 0; h < hsize; ++h ) {
						var mytd = tds[h];
						if ( mytd.style.backgroundColor ) {
							continue;
						}
						mytd.style.backgroundColor = even ? evenColor : oddColor;
					}
					even = !even;
				}
			}
		}
	}
   /** end of function }}} */


  // this function is need to work around 
  // a bug in IE related to element attributes
  function hasClass(obj) {
     var result = false;
     if (obj.getAttributeNode("class") != null) {
         result = obj.getAttributeNode("class").value;
     }
     return result;
  }   


 function stripe ( ) {

    // the flag we'll use to keep track of 
    // whether the current row is odd or even
    var even = false;
  
    // if arguments are provided to specify the colours
    // of the even & odd rows, then use the them;
    // otherwise use the following defaults:
    //var evenColor = arguments[1] ? arguments[1] : "#fff";
    //var oddColor = arguments[2] ? arguments[2] : "#ff3";

 	var evenColor = "#fff";
 	var oddColor = "#ff3";

    // obtain a reference to the desired table
    // if no such table exists, abort
    var table = document.getElementById('formtable');
    if (! table) {
    	table = document.getElementById('formtablelist');
    	if ( !table ) {
    		table = document.getElementById('kernlist');
    		if ( !table ) {
    			return;
    		}
    	}
    }
    
    // by definition, tables can have more than one tbody
    // element, so we'll have to get the list of child
    // &lt;tbody&gt;s 
    var tbodies = table.getElementsByTagName("tbody");

    // and iterate through them...
    for (var h = 0; h < tbodies.length; h++) {
    
     // find all the &lt;tr&gt; elements... 
      var trs = tbodies[h].getElementsByTagName("tr");
      
      // ... and iterate through them
      for (var i = 0; i < trs.length; i++) {

	    // avoid rows that have a class attribute
        // or backgroundColor style
	    //if (!hasClass(trs[i]) && ! trs[i].style.backgroundColor) {
	    if (!trs[i].style.backgroundColor) {
 
         // get all the cells in this row...
          var tds = trs[i].getElementsByTagName("td");
        
          // and iterate through them...
          for (var j = 0; j < tds.length; j++) {
        
            var mytd = tds[j];

            // avoid cells that have a class attribute
            // or backgroundColor style
	        //if (! hasClass(mytd) && ! mytd.style.backgroundColor) {
	        if (!mytd.style.backgroundColor) {
        
		      mytd.style.backgroundColor = even ? evenColor : oddColor;
              
            }
          }
        }
        // flip from odd to even, or vice-versa
        even =  ! even;
      }
    }
  }


	function Ef_EnlargePhoto ( src )
	{
		var image = document.getElementById('enlarged');
		if ( !image ) {
			return;
		}
		image.src = src;
	}
   /** end of function }}} */


   /**
   	* {{{ Opens the print window
   	*
   	* @access	public
   	* @param	int
	*/
	function Ef_PrintBooking ( id )
	{
		var winleft = 0;
		var wintop = 0;
		if ( screen.width ) {
			winleft = ( screen.width - 650 ) / 2;
			wintop = ( screen.height - 500 ) / 2;
			if ( winleft < 0 ) winleft = 0;
			if ( wintop < 0 ) wintop = 0;
		}
		var features =
			'toolbar=no,location=no,directories=no,status=no,menubar=yes,' + 
			'scrollbars=yes,resizable=yes' +
			',width=' + 650 + ',height=' + 500 + ',top=' + wintop +
			',left=' + winleft;
		var page = document.forms['frm_input'].action + '?cmd=print&id=' + id;
		var openwin = window.open(page, "Printen", features);
		( openwin.opener == null ) ? openwin.opener = window : openwin.focus();
	}
   /** end of function }}} */


	function GetRandom ( page )
	{
		var randimg = document.getElementById('randimg');
		if ( !randimg ) {
			return;
		}
		randimg.src = page + '/images/rotate/rotate.php?id=' + new Date().getTime();
		setTimeout("GetRandom('" + page + "')", 5000);
	}
   /** end of function }}} */