var keydate1 = new Date();
var keydate2 = new Date();
var keytime1 = 0;
var keytime2 = 0;
var key_ff = 0;
var g_TimeAzon = 0;
var g_onInputOver = 0;
var g_onDivOver = 0;

/**
 * An autosuggest textbox control.
 * @class
 * @scope public
 */
function AutoSuggestControl(oTextbox /*:HTMLInputElement*/,
                            oProvider /*:SuggestionProvider*/) {

    /**
     * The currently selected suggestions.
     * @scope private
     */
    this.cur /*:int*/ = -1;

    /**
     * The dropdown list layer.
     * @scope private
     */
    this.layer = null;

    /**
     * Suggestion provider for the autosuggest feature.
     * @scope private.
     */
    this.provider /*:SuggestionProvider*/ = oProvider;

    /**
     * The textbox to capture.
     * @scope private
     */
    this.textbox /*:HTMLInputElement*/ = oTextbox;

    //initialize the control
    this.init();
}

/*GDI*/
function teszt(my_Azon, my_sSuggestion)
{
  var myText = document.getElementById(comboroll_input_IDname);
  if (g_TimeAzon==my_Azon && myText.value.length>0)
  {
    var iStart = myText.value.length;
    myText.value = my_sSuggestion;
    iLength = my_sSuggestion.length;

    //use text ranges for Internet Explorer
    if (myText.createTextRange) {
        var oRange = myText.createTextRange();
        oRange.moveStart("character", iStart);
        oRange.moveEnd("character", iLength - myText.value.length);
        oRange.select();

    //use setSelectionRange() for Mozilla
    } else if (myText.setSelectionRange) {
        myText.setSelectionRange(iStart, iLength);
    }
    //set focus back to the textbox
    myText.focus();
    
    /*
    var oRange = myText.createTextRange();
    oRange.moveStart('character', iStart);
    oRange.moveEnd('character', my_sSuggestion.length - iStart);
    oRange.select();
    */
  }
  
}

AutoSuggestControl.prototype.timerSuggestion = function (my_sSuggestion /*:String*/)
{
  var myTime = keytime1-keytime2;
  if (myTime<0) myTime = -myTime;

  if (myTime < 500)
  {
    g_TimeAzon++;
    setTimeout(" teszt("+g_TimeAzon+", '"+my_sSuggestion+"'); ", 300);
  }
  else
  {
    //alert ( 'run ' + myTime );
    this.typeAhead(my_sSuggestion);
  }
}
/**/

/**
 * Autosuggests one or more suggestions for what the user has typed.
 * If no suggestions are passed in, then no autosuggest occurs.
 * @scope private
 * @param aSuggestions An array of suggestion strings.
 * @param bTypeAhead If the control should provide a type ahead suggestion.
 */
AutoSuggestControl.prototype.autosuggest = function (aSuggestions /*:Array*/,
                                                     bTypeAhead /*:boolean*/) {

    //make sure there's at least one suggestion
    if (aSuggestions.length > 0) {
        if (bTypeAhead) {
           //this.typeAhead(aSuggestions[0]);
           /*GDI*/
           this.timerSuggestion(aSuggestions[0]);
           /**/
        }

        this.showSuggestions(aSuggestions);
    } else {
        this.hideSuggestions();

        /*GDI*/
        if (this.textbox.value.length>0)
        {
          this.textbox.value = this.textbox.value.substr(0, this.textbox.value.length-1);
          //this.provider.requestSuggestions(this, false);
          if (this.textbox.value.length>0)
            this.provider.requestSuggestions(this, true);
        }
        /**/
    }
};

/**
 * Creates the dropdown layer to display multiple suggestions.
 * @scope private
 */
AutoSuggestControl.prototype.createDropDown = function () {

    var oThis = this;

    //create the layer and assign styles
    this.layer = document.createElement("div");
    this.layer.className = "suggestions";
    this.layer.style.visibility = "hidden";
    this.layer.style.width = this.textbox.offsetWidth;
    this.layer.style.zIndex = 100;

    this.layer.onblur = function () {
      if (g_onInputOver == 0 && g_onDivOver == 0 )
        oThis.hideSuggestions();
    };

    //when the user clicks on the a suggestion, get the text (innerHTML)
    //and place it into a textbox
    this.layer.onmousedown =
    this.layer.onmouseup =
    this.layer.onmouseover = function (oEvent) {
        g_onDivOver = 1;
        
        oEvent = oEvent || window.event;
        oTarget = oEvent.target || oEvent.srcElement;

        if (oEvent.type == "mousedown") {
            if (oTarget.firstChild.nodeValue!=null && oTarget.firstChild.nodeValue!='null')
            {
              oThis.textbox.value = oTarget.firstChild.nodeValue;
              oThis.hideSuggestions();
            }
            //oThis.hideSuggestions();
        } else if (oEvent.type == "mouseover") {
            oThis.highlightSuggestion(oTarget);
        } else {
            oThis.textbox.focus();
        }
    };
    this.layer.onmouseout = function (oEvent) {
      g_onDivOver = 0;
    }

    document.body.appendChild(this.layer);
};

/**
 * Gets the left coordinate of the textbox.
 * @scope private
 * @return The left coordinate of the textbox in pixels.
 */
AutoSuggestControl.prototype.getLeft = function () /*:int*/ {

    var oNode = this.textbox;
    var iLeft = 0;

    while(oNode.tagName != "BODY") {
        iLeft += oNode.offsetLeft;
        oNode = oNode.offsetParent;
    }

    return iLeft;
};

/**
 * Gets the top coordinate of the textbox.
 * @scope private
 * @return The top coordinate of the textbox in pixels.
 */
AutoSuggestControl.prototype.getTop = function () /*:int*/ {

    var oNode = this.textbox;
    var iTop = 0;

    while(oNode.tagName != "BODY") {
        iTop += oNode.offsetTop;
        oNode = oNode.offsetParent;
    }

    return iTop;
};

/**
 * Handles three keydown events.
 * @scope private
 * @param oEvent The event object for the keydown event.
 */
AutoSuggestControl.prototype.handleKeyDown = function (oEvent /*:Event*/) {
    switch(oEvent.keyCode) {
        case 38: //up arrow
            if (this.layer.style.visibility != "hidden")
              this.previousSuggestion();
            break;
        case 40: //down arrow
            if (this.layer.style.visibility != "hidden")
              this.nextSuggestion();
            break;
        case 9: //TAB
              var myText = document.getElementById(comboroll_input_IDname);
              if (myText.value.length>0)
              {
                firstChar = myText.value.charAt(0);
                lowerFSChar = firstChar.toLowerCase();
                if (lowerFSChar==firstChar)
                  myText.value = firstChar.toUpperCase() + myText.value.substr(1);
               }

              //if (this.textbox.value.length>0)
              //this.provider.requestSuggestions(this, true);

              //this.nextSuggestion();
              //this.previousSuggestion();
              //this.firstSuggestion();
              
              this.hideSuggestions();
              //varosellenor(this.value);
            break;
        case 13: //enter
            if (this.layer.style.visibility != "hidden")
              this.hideSuggestions();
            else
              document.getElementById(comboroll_form_IDname).submit();
            break;
    }
};

/**
 * Handles keyup events.
 * @scope private
 * @param oEvent The event object for the keyup event.
 */
AutoSuggestControl.prototype.handleKeyUp = function (oEvent /*:Event*/) {

    var iKeyCode = oEvent.keyCode;

    //for backspace (8) and delete (46), shows suggestions without typeahead
    if (iKeyCode == 8 || iKeyCode == 46) {

        /*GDI*/
        if (iKeyCode == 8)
          this.textbox.value = this.textbox.value.substr(0, this.textbox.value.length-1);
        if (this.textbox.value.length>0)
          this.provider.requestSuggestions(this, true);
        /**/
        //this.provider.requestSuggestions(this, true); //original

    //make sure not to interfere with non-character keys
    } else if (iKeyCode < 32 || (iKeyCode >= 33 && iKeyCode < 46) || (iKeyCode >= 112 && iKeyCode <= 123)) {
        //ignore
    } else {
        //request suggestions from the suggestion provider with typeahead
        this.provider.requestSuggestions(this, true);
    }
};

/**
 * Hides the suggestion dropdown.
 * @scope private
 */
AutoSuggestControl.prototype.hideSuggestions = function () {
    this.layer.style.visibility = "hidden";
};

/**
 * Highlights the given node in the suggestions dropdown.
 * @scope private
 * @param oSuggestionNode The node representing a suggestion in the dropdown.
 */
AutoSuggestControl.prototype.highlightSuggestion = function (oSuggestionNode) {

    for (var i=0; i < this.layer.childNodes.length; i++) {
        var oNode = this.layer.childNodes[i];
        if (oNode == oSuggestionNode) {
            oNode.className = "current"
        } else if (oNode.className == "current") {
            oNode.className = "";
        }
    }
    
};

/**
 * Initializes the textbox with event handlers for
 * auto suggest functionality.
 * @scope private
 */
AutoSuggestControl.prototype.init = function () {

    //save a reference to this object
    var oThis = this;

    //assign the onkeyup event handler
    this.textbox.onkeyup = function (oEvent) {

        /*GDI*/
        if (this.value.length>0)
        {
          firstChar = this.value.charAt(0);
          lowerFSChar = firstChar.toLowerCase();
          if (lowerFSChar==firstChar)
            this.value = firstChar.toUpperCase() + this.value.substr(1);
         }
        /**/

        //check for the proper location of the event object
        if (!oEvent) {
            oEvent = window.event;
        }

        //call the handleKeyUp() method with the event object
        oThis.handleKeyUp(oEvent);
    };

    //assign onkeydown event handler
    this.textbox.onkeydown = function (oEvent) {
        // 0 -> 1
        if (key_ff==1)
          key_ff = 2;
        else
          key_ff = 1;

        if (key_ff==1)
        {
          keydate1 = new Date();
          keytime1 = keydate1.getTime();
        }
        else
        {
          keydate2 = new Date();
          keytime2 = keydate2.getTime();
        }

        //check for the proper location of the event object
        if (!oEvent) {
            oEvent = window.event;
        }

        //call the handleKeyDown() method with the event object
        oThis.handleKeyDown(oEvent);
    };

    //assign onblur event handler (hides suggestions)
    this.textbox.onblur = function () {
        if (g_onDivOver==0 && g_onInputOver==0)
          oThis.hideSuggestions();
        varosellenor(this.value);
    };

    this.textbox.onmouseover = function () {
      g_onInputOver = 1;
    };
    
    this.textbox.onmouseout = function () {
      g_onInputOver = 0;
    };

var  oPr = this.provider;

    /*GDI*/
    this.textbox.onclick = function () {
        oThis.provider.requestSuggestions(oThis, false);
        varosellenor(this.value);
    };
    /**/

    //create the suggestions dropdown
    this.createDropDown();
};

/**
 * Highlights the next suggestion in the dropdown and
 * places the suggestion into the textbox.
 * @scope private
 */
AutoSuggestControl.prototype.nextSuggestion = function () {
    var cSuggestionNodes = this.layer.childNodes;

    if (cSuggestionNodes.length > 0 && this.cur < cSuggestionNodes.length-1) {
        var oNode = cSuggestionNodes[++this.cur];
        this.highlightSuggestion(oNode);
        this.textbox.value = oNode.firstChild.nodeValue;
    }
};

/**
 * Highlights the previous suggestion in the dropdown and
 * places the suggestion into the textbox.
 * @scope private
 */
AutoSuggestControl.prototype.previousSuggestion = function () {
    var cSuggestionNodes = this.layer.childNodes;

    if (cSuggestionNodes.length > 0 && this.cur > 0) {
        var oNode = cSuggestionNodes[--this.cur];
        this.highlightSuggestion(oNode);
        this.textbox.value = oNode.firstChild.nodeValue;
    }
};

AutoSuggestControl.prototype.firstSuggestion = function () {
    var cSuggestionNodes = this.layer.childNodes;

    if (cSuggestionNodes.length > 0 && this.cur >= 0) {
        var oNode = cSuggestionNodes[this.cur];
        this.highlightSuggestion(oNode);
        this.textbox.value = oNode.firstChild.nodeValue;
    }
};

/**
 * Selects a range of text in the textbox.
 * @scope public
 * @param iStart The start index (base 0) of the selection.
 * @param iLength The number of characters to select.
 */
AutoSuggestControl.prototype.selectRange = function (iStart /*:int*/, iLength /*:int*/) {

    //use text ranges for Internet Explorer
    if (this.textbox.createTextRange) {
        var oRange = this.textbox.createTextRange();
        oRange.moveStart("character", iStart);
        oRange.moveEnd("character", iLength - this.textbox.value.length);
        oRange.select();

    //use setSelectionRange() for Mozilla
    } else if (this.textbox.setSelectionRange) {
        this.textbox.setSelectionRange(iStart, iLength);
    }

    //set focus back to the textbox
    this.textbox.focus();
};

/**
 * Builds the suggestion layer contents, moves it into position,
 * and displays the layer.
 * @scope private
 * @param aSuggestions An array of suggestions for the control.
 */
AutoSuggestControl.prototype.showSuggestions = function (aSuggestions /*:Array*/) {

    //GDI
    this.cur = -1;

    var oDiv = null;
    this.layer.innerHTML = "";  //clear contents of the layer

    //for (var i=0; i < aSuggestions.length && (i < 30); i++) {
    for (var i=0; i < aSuggestions.length; i++) {
        oDiv = document.createElement("div");
        oDiv.appendChild(document.createTextNode(aSuggestions[i]));
        this.layer.appendChild(oDiv);
    }

    this.layer.style.left = this.getLeft() + 1 + "px";
    this.layer.style.top = (this.getTop()+this.textbox.offsetHeight) + "px";
    this.layer.style.visibility = "visible";
    //this.layer.style.border = "#707070 solid 1px;"; //css

    if (aSuggestions.length>15)
    {
      this.layer.style.height = "230px";
      this.layer.style.overflow = "auto";
      this.layer.style.padding = "0px";
      this.layer.style.margin = "0px";
    }
    else
    {
      this.layer.style.height = "auto";
      this.layer.style.overflow = "hidden";
      this.layer.style.padding = "0px";
      this.layer.style.margin = "0px";
      //this.layer.style.background = "#000000";
      //alert( this.layer.style.height );
    }

};

/**
 * Inserts a suggestion into the textbox, highlighting the
 * suggested part of the text.
 * @scope private
 * @param sSuggestion The suggestion for the textbox.
 */
AutoSuggestControl.prototype.typeAhead = function (sSuggestion /*:String*/) {

    //check for support of typeahead functionality
    if (this.textbox.createTextRange || this.textbox.setSelectionRange) {
        var iLen = this.textbox.value.length;

        this.textbox.value = sSuggestion;
        this.selectRange(iLen, sSuggestion.length);
    }
};