var Dictionary = {

	KEYBOARD_TYPE_COOKIE: "keyboard_type",
	LANGUAGE_COOKIE: "language",
    caretpos: 0,
	
	setKeyboard: function() {
		var keyboardType = Dictionary.getCookie(Dictionary.KEYBOARD_TYPE_COOKIE);
		Dictionary.changekblanguage(Dictionary.getCookie(Dictionary.LANGUAGE_COOKIE));
	},
	
	setCookie: function(cookieName, value) {
        var cookie = cookieName + "=" + value;
        window.document.cookie = cookie;
    },
    
    getCookie: function(cookieName) {
        var cookies = document.cookie;
        var indexOfCookie = cookies.indexOf(cookieName + "=");
        if (indexOfCookie == -1) {
            return null;
        }
        var cStart = indexOfCookie + cookieName.length + 1;        
        var cEnd = cookies.indexOf(";", cStart);
        //in case the last cookie value is requested and the cookie string end is not closed with semicolon
        if (cEnd <= cStart) {
            cEnd = cookies.length;
        }
        var cookieValue = cookies.substring(cStart, cEnd);
        //handle the case when the cookie value is empty
        if (cookieValue.substring(0,1) == ";") {
            cookieValue = "";
        }
        return cookieValue;
    },

    mouseOver: function(component) {
    	var mail = "orosz.";
    	mail += "szotar";
    	mail += "@";
    	mail += "gmail";
    	mail += ".com";
    	component.href="mailto:" + mail;		
    },
	
    appendLetter: function(button) {		
	    var letter = button.value;
	    var word = $("word");				
	    var shiftkey = $("shiftkey");
	    if (letter == "^") {
		    if (button.name=="capital") {
			    button.name="little";
			    button.className="little";
		    }
		    else {
			    button.name="capital";
			    button.className="capital";
		    }
	    }
	    else {
	    
		    if (letter == "CR") {
			    word.value="";
			    Dictionary.caretpos = 0;
		    }		
		    else if (letter == "<") {
			    if (word.value.length > 0 && Dictionary.caretpos > 0) {
				    var firstpart=word.value.substring( 0, Dictionary.caretpos - 1 );
				    var secondpart="";
				    if (word.value.length > Dictionary.caretpos) {
					    secondpart = word.value.substring( Dictionary.caretpos, word.value.length );
				    }
				    word.value = firstpart + secondpart;
				    Dictionary.caretpos--;
			    }
		    }
		    else if (letter == "_") {
			    var firstpart=word.value.substring( 0, Dictionary.caretpos );
			    var secondpart="";
			    if (word.value.length > Dictionary.caretpos) {
				    secondpart = word.value.substring( Dictionary.caretpos, word.value.length );
			    }
			    word.value = firstpart + " " + secondpart;				
			    Dictionary.caretpos++;
		    }
		    else {
			    if (shiftkey != null && shiftkey.name=="capital") {
				    letter = letter.toUpperCase();
			    }				
			    var firstpart=word.value.substring( 0, Dictionary.caretpos );
			    var secondpart="";
			    if (word.value.length > Dictionary.caretpos) {
				    secondpart = word.value.substring( Dictionary.caretpos, word.value.length );
			    }
			    word.value = firstpart + letter + secondpart;
			    Dictionary.caretpos++;
		    }
		    
		    //set the caret position						
		    Dictionary.setCaretPosition(word);			
	    }		
    },
	
    setCaretPosition: function(word, pos) {		
	    if (pos) {
		    Dictionary.caretpos = pos;
	    }
	    else {
		    pos = Dictionary.caretpos;
	    }		
	    if (document.selection && navigator.userAgent.indexOf("Opera") == -1) {
		    //IE
		    word.focus();
		    var selrange = document.selection.createRange();
		    selrange.moveStart ('character', -word.value.length);
		    selrange.moveEnd ('character', -word.value.length);
		    selrange.moveStart ('character', pos);
		    selrange.select();
	    }
	    else if (word.selectionStart) {	
		    //Firefox, Opera, Safari
		    word.select();
		    word.selectionStart = pos;
		    word.selectionEnd = word.selectionStart;
	    }
    },
	
    getCaretPosIE: function() {
	    var word = $("word");
	    var i=word.value.length + 1;
	    if (word.createTextRange){
		    theCaret = document.selection.createRange().duplicate();
		    while ( theCaret.parentElement() == word
			    && theCaret.move("character",1)==1 ) --i;
	    }
	    return i==word.value.length+1?-1:i;
    },
    
    storeCaretPosition: function() {
			    
	    var word = $("word");
	    if (document.selection && navigator.userAgent.indexOf("Opera") == -1) {			
		    //IE
		    var word = $("word");
		    Dictionary.caretpos = Dictionary.getCaretPosIE() - 1;		
		    if (Dictionary.caretpos < 0) {						
			    Dictionary.caretpos = word.value.length;			
		    }			
	    }
	    else if (word.selectionStart || word.selectionStart == 0) {
		    //Firefox, Opera, Safari
		    Dictionary.caretpos = word.selectionStart;
		    //word.select();
	    }				
	    
    },

    observeEnter: function() {
        Event.observe('word','keydown',function(event){			
			if (event.keyCode==13) {
				Dictionary.search();
			}
        });
    },
	
    search: function() {
	    Dictionary.showSearchText();
	    var word = Dictionary.encode($("word").value);
	    var lang = Dictionary.RF("language");
		var strictness = Dictionary.RF("strictness");
	    var resultdiv = $("result");
	    var randomnumber = Math.random();
	    var url = "/search.php?word="+word+"&language="+lang+"&strictness="+strictness+"&id="+randomnumber;			
	    new Ajax.Request(url, {
	      method: 'get',
	      onSuccess: function(transport) {
		    resultdiv.innerHTML=transport.responseText;
		    //reset caret position
		    var wordfield = $("word");
		    var pos = wordfield.value.length;
		    Dictionary.setCaretPosition(wordfield, pos);			
	      }
	    });
    },
	
    searchFromResults: function(string) {
	    Dictionary.showSearchText();
	    $("word").value = string;
	    var word = Dictionary.encode(string);
	    //select the opposite language
	    var lang = Dictionary.switchLanguage();
		var strictness = Dictionary.RF("strictness");
	    var resultdiv = $("result");		
	    var randomnumber = Math.random();
	    var url = "/search.php?word="+word+"&language="+lang+"&strictness="+strictness+"&id="+randomnumber;			
	    new Ajax.Request(url, {
	      method: 'get',
	      onSuccess: function(transport) {
		    resultdiv.innerHTML=transport.responseText;
		    //reset caret position			
		    var wordfield = $("word");
		    Dictionary.caretpos = wordfield.textLength;
		    Dictionary.setCaretPosition(wordfield);
	      }
	    });
    },
	
    showSearchText: function() {
	    var resultdiv = $("result");
	    resultdiv.innerHTML="<table class='noresult'><tr class='rowcolor2'><td class='resultheader'>Kis türelmet kérek...</td><td class='resultheader'><img src='/images/loading.gif' /></td></tr></table>";
    },
	    
    encode: function(string) {
	    return escape(Dictionary.utf8_encode(string));
    },		
    
    utf8_encode: function(string) {
	    string = string.replace(/\r\n/g,"\n");
	    var utftext = "";

	    for (var n = 0; n < string.length; n++) {

		    var c = string.charCodeAt(n);

		    if (c < 128) {
			    utftext += String.fromCharCode(c);
		    }
		    else if((c > 127) && (c < 2048)) {
			    utftext += String.fromCharCode((c >> 6) | 192);
			    utftext += String.fromCharCode((c & 63) | 128);
		    }
		    else {
			    utftext += String.fromCharCode((c >> 12) | 224);
			    utftext += String.fromCharCode(((c >> 6) & 63) | 128);
			    utftext += String.fromCharCode((c & 63) | 128);
		    }
	    }
	    return utftext;
    },
	
    utf8_decode : function(utftext) {
        var string = "";
        var i = 0;
        var c = c1 = c2 = 0;
        while ( i < utftext.length ) {
            c = utftext.charCodeAt(i);
            if (c < 128) {
                string += String.fromCharCode(c);
                i++;
            }
            else if((c > 191) && (c < 224)) {
                c2 = utftext.charCodeAt(i+1);
                string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
                i += 2;
            }
            else {
                c2 = utftext.charCodeAt(i+1);
                c3 = utftext.charCodeAt(i+2);
                string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
                i += 3;
            }
        }
        return string;
    },
    
    changekb: function() {
		Dictionary.setCookie(Dictionary.LANGUAGE_COOKIE, "russian");
	    //hide the hungarian keyboard
		kbabchu = $("hungariankeyboardabc");
		if (kbabchu.style.display !== "none") {
			kbabchu.hide();
			Dictionary.switchLanguage();
		}
		//show the russian keyboard
		kb = $("russiankeyboard");
		kbabc = $("russiankeyboardabc");
		if (kb.style.display == "none") {
		    kb.show();
		    kbabc.hide();
			Dictionary.setCookie(Dictionary.KEYBOARD_TYPE_COOKIE, "russiankeyboard");
		}
		else {
		    kbabc.show();
		    kb.hide();
			Dictionary.setCookie(Dictionary.KEYBOARD_TYPE_COOKIE, "russiankeyboardabc");
		}
    },
	
	changekblanguage: function(language) {
	    Dictionary.setCookie(Dictionary.LANGUAGE_COOKIE, language);
		kb = $("russiankeyboard");
		kbabc = $("russiankeyboardabc");
		kbabchu = $("hungariankeyboardabc");
		if (language == "hungarian") {
		    kb.hide();
		    kbabc.hide();
			kbabchu.show();
		}
		else {
		    kbabchu.hide();
		    var keyboardType = Dictionary.getCookie(Dictionary.KEYBOARD_TYPE_COOKIE);
			if (keyboardType == "russiankeyboard") {
				kb.show();
				kbabc.hide();
			}
			else {
			    kb.hide();
				kbabc.show();
			}
		}
    },
	
	/**
	* Returns the value of the selected radio button in the radio group, null if
	* none are selected, and false if the button group doesn't exist
	*
	* @param {radio Object} or {radio id} el
	* OR
	* @param {form Object} or {form id} el
	* @param {radio group name} radioGroup
	*/
	RF: function (el, radioGroup) {
	    if($(el).type && $(el).type.toLowerCase() == "radio") {
	        var radioGroup = $(el).name;
	        var el = $(el).form;
	    } else if ($(el).tagName.toLowerCase() != "form") {
	        return false;
	    }
	    var checked = $(el).getInputs("radio", radioGroup).find(
	        function(re) {return re.checked;}
	    );
	    return (checked) ? $F(checked) : null;
	},
	
	switchLanguage: function() {
	    var lang = "russian";
		var languageRadioButtons = $("searchform").getInputs("radio", "language");
		if (languageRadioButtons[0].checked) {
			languageRadioButtons[0].checked = false;
			languageRadioButtons[1].checked = true;
			lang = languageRadioButtons[1].value;
		}
		else {
			languageRadioButtons[0].checked = true;
			languageRadioButtons[1].checked = false;
			lang = languageRadioButtons[0].value;
		}
		return lang;
	},
	
	setLanguage: function() {
		var wordbox = $("word");
		var word = wordbox.value;
		if (word.length > 0) {
			var letter = word.substring(0,1);
			var lang = "russian";
			if (letter.match (/^[ A-Za-záÁéÉíÍóÓőŐöÖúÚűŰüÜ]+$/)) {
				lang = "hungarian";
			}
			if (lang !== Dictionary.RF("language")) {
				Dictionary.switchLanguage();
			}
		}			
	},
	
	setLanguageToRussian: function() {
		var lang = Dictionary.RF("language");
		if (lang === "hungarian") {
			Dictionary.switchLanguage();
		}
	},
	
	setLanguageToHungarian: function() {
		var lang = Dictionary.RF("language");
		if (lang === "russian") {
			Dictionary.switchLanguage();
		}
	}

};