/* Create a new XMLHttpRequest object to talk to the Web server */
var xmlHttp = false;
/*@cc_on @*/
/*@if (@_jscript_version >= 5)
try {
  xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
  try {
    xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
  } catch (e2) {
    xmlHttp = false;
  }
}
@end @*/

if (!xmlHttp && typeof XMLHttpRequest != 'undefined') {
  xmlHttp = new XMLHttpRequest();
}


var mustTerm = new Array();
var mayTerm = new Array();
var notTerm = new Array();



function trim(inputString) {
   // Removes leading and trailing spaces from the passed string. Also removes
   // consecutive spaces and replaces it with one space. If something besides
   // a string is passed in (null, custom object, etc.) then return the input.
   if (typeof inputString != "string") { return inputString; }
   var retValue = inputString;
   var ch = retValue.substring(0, 1);
   while (ch == " ") { // Check for spaces at the beginning of the string
      retValue = retValue.substring(1, retValue.length);
      ch = retValue.substring(0, 1);
   }
   ch = retValue.substring(retValue.length-1, retValue.length);
   while (ch == " ") { // Check for spaces at the end of the string
      retValue = retValue.substring(0, retValue.length-1);
      ch = retValue.substring(retValue.length-1, retValue.length);
   }
   while (retValue.indexOf("  ") != -1) { // Note that there are two spaces in the string - look for multiple spaces within the string
      retValue = retValue.substring(0, retValue.indexOf("  ")) + retValue.substring(retValue.indexOf("  ")+1, retValue.length); // Again, there are two spaces in each of the strings
   }
   return retValue; // Return the trimmed string back to the user
} // Ends the "trim" function


function init()
{
	var kwdCookie = GetCookie( 'kwds' );
	var locCookie = GetCookie( 'loc' );

	if (kwdCookie != null)
	{
		if (kwdCookie != '')
		{
			var kwdList = CookieToList( kwdCookie );
			var dest = document.getElementById( 'wizard_display_keywords' );
			for (i = 0; i < kwdList.length ; i++ )
			{
				dest.options[ dest.options.length ] = new Option(kwdList[ i ][ 1 ], kwdList[ i ][ 0 ]);
				var kwdCondition = kwdList[ i ][ 1 ];
				var conditions = kwdCondition.split(':');
				switch ( conditions[0] )
				{
				case 'Must Have':
				mustTerm[ mustTerm.length ] = trim( conditions[1] );
				break;
				case 'May Have':
				mayTerm[ mayTerm.length ] = trim( conditions[1] );
				break;
				case 'Must Not Have':
				notTerm[ notTerm.length ] = trim( conditions[1] );
				break;
				}
			}
		}
	}

	if (locCookie != null)
	{
		if (locCookie != '')
		{
			var locList = CookieToList( locCookie );
			var dest = document.getElementById( 'wizard_location_display' );
			for (i = 0; i < locList.length ; i++ )
			{
				dest.options[ dest.options.length ] = new Option(locList[ i ][ 0 ], locList[ i ][ 1 ]);
				dest.options[ dest.options.length - 1 ].id = locList[ i ][ 2 ];
			}
		}
		drawLocationsSelect( 'wizard_location_display' );
	}
}

function AddTerm( source, destination, type )
{
  var src  = document.getElementById( source );
  var dest = document.getElementById( destination );
  var mayCode = "| ";
  var notCode = "- ";
  var url = 'advanced_search_ajax.php?term_action=add&';

	if (src.value != '')
	{
		var term = quotePhrases( src.value );
		switch ( type )
		{
			case 'must':
			mustTerm[ mustTerm.length ] = term;
			dest.options[ dest.options.length ] =  new Option( wizard_must_have + term, term );
			url = url + 'value='+term.replace(/\+/g,"_plus_sign_")+'&inner='+wizard_must_have + term.replace(/\+/g,"_plus_sign_");
			break;
			case 'may':
			mayTerm[ mayTerm.length ] = term;
			dest.options[ dest.options.length ] =  new Option( wizard_may_have + term, mayCode + term.replace(/\+/g,"_plus_sign_") );
			url = url + 'value='+mayCode + term.replace(/\+/g,"_plus_sign_")+'&inner='+wizard_may_have + term.replace(/\+/g,"_plus_sign_");
			break;
			case 'not':
			notTerm[ notTerm.length ] = term;
			dest.options[ dest.options.length ] =  new Option( wizard_must_not_have + term, notCode + term.replace(/\+/g,"_plus_sign_") );
			url = url + 'value='+notCode + term.replace(/\+/g,"_plus_sign_")+'&inner='+wizard_must_not_have + term.replace(/\+/g,"_plus_sign_");
			break;
		}
		src.value = '';

  	xmlHttp.open("GET", url, true);

    // Setup a function for the server to run when it's done
    xmlHttp.onreadystatechange = updatePage;

    // Send the request
    xmlHttp.send(null);
	}
	else
	{
		alert( wizard_keywords_add_error );
	}
}

function RemoveTerm( src )
{
  var idx = src.selectedIndex;

	clearArray(mustTerm, src.options[idx].value);
	clearArray(mayTerm, src.options[idx].value);
	clearArray(notTerm, src.options[idx].value);

	var url = 'advanced_search_ajax.php?term_action=remove&value='+src.options[idx].value.replace(/\+/g,"_plus_sign_");
	xmlHttp.open("GET", url, true);

  // Setup a function for the server to run when it's done
  xmlHttp.onreadystatechange = updatePage;

  // Send the request
  xmlHttp.send(null);

  src.options[ idx ] = null;
}

function ParseLocations( targetDiv )
{
	var dest = document.getElementById( 'wizard_location_display' );
	var editSpace = document.getElementById( targetDiv );
	if (dest.options.length > 0)
	{
		var i;
		for (i = 0; i < dest.options.length ; i++ )
		{
			//document.forms[0].elements[ document.forms[0].elements.length ] = new Input();
			//document.forms[0].elements[ document.forms[0].elements.length ].type = 'hidden';
			//document.forms[0].elements[ document.forms[0].elements.length ].name = 'locations[]';
			//document.forms[0].elements[ document.forms[0].elements.length ].value = dest.options[ i ].value;
			editSpace.innerHTML = editSpace.innerHTML + "<input type=\"hidden\" name=\"locations[]\" value=\"" + dest.options[ i ].value + "\" />";
		}
	}
	else
	{
		//document.forms[0].elements[ document.forms[0].elements.length ] = new Hidden('locations[]', '');
		editSpace.innerHTML = editSpace.innerHTML + "<input type=\"hidden\" name=\"locations[]\" value=\"\" />";
	}


}

function ParseKeywords()
{
	var keywords = '';

	if ( mustTerm.length > 0 )
	{
		var i;
		var j = 0;
		for (i = 0; i < mustTerm.length ; i++ )
		{
			keywords = keywords + mustTerm[i];
			if (j < (mustTerm.length - 1))
			{
				keywords = keywords + ' AND ';
			}
			j++;
		}
	}
	if ( mayTerm.length > 0 )
	{
		var i;
		for (i=0 ; i < mayTerm.length ; i++ )
		{
			var k;
			var innerkeywords = '';
			for (k = 0; k < mustTerm.length ; k++ )
			{
				innerkeywords = innerkeywords + ' AND (' + mustTerm[k] + ' OR ' + mayTerm[i] + ')';
			}
			keywords = keywords + innerkeywords;
		}
	}
	if ( notTerm.length > 0 )
	{
		var i;
		for (i=0 ; i < notTerm.length ; i++ )
		{
			keywords = keywords + ' NOT ' + notTerm[i];
		}
	}
	var keywrds = document.getElementById('keywords');
	keywrds.value = keywords.replace(/\+/g,"_plus_sign_");
}

function JumpOption(src, action)
{
	var movedId;
	var movedLabel;
	var idx = src.selectedIndex;
	movedId = src.options[ idx ].id;
	movedValue = src.options[ idx ].value;
	movedLabel = src.options[ idx ].text;
	var url = 'advanced_search_ajax.php?movedId='+movedId+'&movedValue='+movedValue+'&movedLabel='+movedLabel;

	switch ( action )
	{
	case 'add':
		var dest = document.getElementById( 'wizard_location_display' );
		src.options[ idx ] = null;
		dest.options[ dest.options.length ] =  new Option( movedLabel, movedValue );
		dest.options[ dest.options.length - 1 ].id = movedId;
		url = url + '&action=add';
	break;
	case 'remove':
		var dest = document.getElementById( 'wizard_location_display' );
		dest.options[ idx ] = null;
		drawLocationsSelect('wizard_location_display');
		url = url + '&action=remove';
	break;
	}

	xmlHttp.open("GET", url, true);

  // Setup a function for the server to run when it's done
  xmlHttp.onreadystatechange = updatePage;

  // Send the request
  xmlHttp.send(null);

}

function SetSession(kwdselect, locselect)
{
	var keywordsSelect = document.getElementById( kwdselect );
	var locationsSelect = document.getElementById( locselect );
	var keywordsCookie = '';
	var locationsCookie = '';

	for (i = 0 ; i < keywordsSelect.options.length ; i++ )
	{
		keywordsCookie = keywordsCookie + keywordsSelect.options[ i ].value + '|' + keywordsSelect.options[ i ].text ;
		if ( i < keywordsSelect.options.length -1)
		{
			keywordsCookie = keywordsCookie + ',';
		}
	}

  keywordsCookie.replace(/\+/g,"_plus_sign_");

	for (i = 0 ; i < locationsSelect.options.length ; i++ )
	{
		locationsCookie = locationsCookie + locationsSelect.options[ i ].text + '|' + locationsSelect.options[ i ].value + '|' + locationsSelect.options[ i ].id;
		if ( i < locationsSelect.options.length -1)
		{
			locationsCookie = locationsCookie + ',';
		}
	}

	document.cookie = "kwds="+escape(keywordsCookie);
	document.cookie = "loc="+escape(locationsCookie);
}

function ValidateSelects()
{
	var ageselect = document.getElementById('wizard_filter_date_select');
	var jobtypeselect = document.getElementById('wizard_filter_jobtype_select');
	var sortbyselect = document.getElementById('wizard_filter_sortby_select');

	if (ageselect.value == 'x')
	{
		ageselect.value = 0;
	}
	if (jobtypeselect.value == 'x')
	{
		jobtypeselect.value = 0;
	}
	if (sortbyselect.value == 'x')
	{
		sortbyselect.value = 1;
	}
}

function ValidateSelectsJBE()
{
	var jobtypeselect = document.getElementById('wizard_filter_jobtype_select');

	if (jobtypeselect.value == 'x')
	{
		jobtypeselect.value = 0;
	}
}

function CheckEmail()
{
	var emailfield = document.getElementById('wizard_email_input');
	var errorspan = document.getElementById('wizard_email_error_span');

	var emailposted = emailfield.value;

	if ( emailposted == '')
	{
		errorspan.className = 'wizard_email_error_span_visible';
		return false;
	}
	else
	{
		var emailpattern = /^[a-z0-9\._-]+@+[a-z0-9\._-]+\.+[a-z]{2,4}$/;
		return emailpattern.test(emailposted);
	}
}

function drawLocationsSelect( name )
{
	var selectedList = document.getElementById( name );
	var selectedListLength = selectedList.options.length;
	var omitList = new Array();
	var i, j, k, m, n;
	var found;
	for (i = 0; i < selectedListLength ; i++ )
	{
		omitList[ i ] = selectedList.options[ i ].id;
	}
//	var debug = dumpArray( omitList );
//	alert( debug );

	var choiceList = document.getElementById( 'wizard_location_select' );
	var choiceListLength = choiceList.options.length;
	for (i = 0; i < choiceListLength; i++)
	{
		choiceList.options[0] = null;
	}

	k = 0;
	for (i = 0; i < LocationsKeys.length; i++)
	{
		found = false;
		for (m = 0; m < omitList.length; m++)
		{
			if (omitList[m] == "Locations[" + i + "][0][0]" )
			{
				found = true;
				break;
			}
		}

		if (found == false)
		{
			choiceList.options[k] = new Option( LocationsKeys[i], Locations[i][0][1] );
			choiceList.options[k].id = "Locations[" + i + "][0][0]";
			k++;

		}
		for (j = 1; j < Locations[i].length; j++)
		{
			found = false;
			for (n = 0; n < omitList.length; n++)
			{
				if (omitList[n] == "Locations[" + i + "][" + j + "][1]" )
				{
					found = true;
					break;
				}

			}
			if (found == false)
			{
				choiceList.options[k] = new Option( "-- " + Locations[i][j][0], Locations[i][j][1] );
				choiceList.options[k].id = "Locations[" + i + "][" + j + "][1]";
				k++;

			}

		}
	}
}



/*function drawLocationsSelectKP( name )
{
	var selectedList = document.getElementById( name );
	var selectedListLength = selectedList.options.length;
	var omitList = new Array();
	var i, j, k, m, n;
	var found;
	for (i = 0; i < selectedListLength ; i++ )
	{
		omitList[ i ] = selectedList.options[ i ].id;
	}
	//var debug = dumpArray( omitList );
	//alert( debug );

	var choiceList = document.getElementById( 'wizard_location_select' );
	var choiceListLength = choiceList.options.length;

  for (i = 0; i < choiceListLength; i++)
	{
		choiceList.options[0] = null;
	}

	k = 0;
	for (i = 0; i < LocationsKeys.length; i++)
	{
		found = false;
		for (m = 0; m < omitList.length; m++)
		{
			if (omitList[m] == "Locations[" + i + "][0][0]" )
			{
				found = true;
				break;
			}
		}

		if (found == false)
		{
			choiceList.options[k] = new Option( LocationsKeys[i], Locations[i][0][1] );
			choiceList.options[k].id = "Locations[" + i + "][0][0]";
			k++;

		}
		for (j = 1; j < Locations[i].length; j++)
		{
			found = false;
			for (n = 0; n < omitList.length; n++)
			{
				if (omitList[n] == "Locations[" + i + "][" + j + "][1]" )
				{
					found = true;
					break;
				}

			}
			if (found == false)
			{
				choiceList.options[k] = new Option( "-- " + Locations[i][j][0], Locations[i][j][1] );
				choiceList.options[k].id = "Locations[" + i + "][" + j + "][1]";
				k++;

			}

		}
	}
}
*/

function CheckEmailType()
{
	if (document.forms[0].emailtype.value == 2)
	{
		document.forms[0].emailtype.value = 1;
	}
}


function clearArray( keywordsarray, keyword )
{
	var i = 0;
	for (i=0; i < keywordsarray.length ; i++ )
	{
		if (keywordsarray[i] == keyword)
		{
			keywordsarray.splice(i, 1);
		}
	}
}

function CookieToList( cookie )
{
	var output = new Array();
	var preOutput = cookie.split(',');
	for (i = 0; i < preOutput.length ; i++ )
	{
		output[ i ] = preOutput[ i ].split('|');
	}
	return output;
}

function quotePhrases( phrase )
{
	var words = phrase.split(/\s+/);
	if (words.length > 1)
	{
		var returnPhrase =  '"';
		for ( i=0 ; i < words.length ; i++ )
		{
			if (i == (words.length -1))
			{
				returnPhrase = returnPhrase + words[ i ];
			}
			else
			{
				returnPhrase = returnPhrase + words[ i ] + ' ';
			}

		}
		returnPhrase = returnPhrase + '"';
		return returnPhrase;
	}
	else
	{
	return phrase;
	}

}

function dumpArray( keywordsarray )
{
	var i;
	var output = '';
	for(i = 0; i < keywordsarray.length; i++)
	{
		output = output + keywordsarray[i] + ',';
	}
	return output;
}

function updatePage() {
  if (xmlHttp.readyState == 4) {
    var response = xmlHttp.responseText;
    //alert(response);
  }
}