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https://github.com/GrammaticalFramework/gf-core.git
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New demo: translation quiz. Remove outdated demos/index.txt
This commit is contained in:
hallgren
247
demos/TransQuiz/quiz_support.js
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247
demos/TransQuiz/quiz_support.js
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function hide_element(elem_id)
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{
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document.getElementById(elem_id).style.display="none";
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}
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function show_element(elem_id)
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{
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document.getElementById(elem_id).style.display="";
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}
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function toggle_info()
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{
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if ( info_hidden == true )
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{
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show_element("info");
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hide_element("toggle_show");
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show_element("toggle_hide");
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info_hidden = false;
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}
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else
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{
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hide_element("info");
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show_element("toggle_show");
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hide_element("toggle_hide");
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info_hidden = true;
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}
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}
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function show_word_magnets()
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{
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if ( words_hidden == true )
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{
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show_element("words");
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words_hidden= false;
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var buttons_bar=element("buttons_bar")
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buttons_bar.removeChild(buttons_bar.lastChild);
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}
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}
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function hide_word_magnets()
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{
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if ( words_hidden == false )
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{
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hide_element("words");
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words_hidden= true;
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//add "Show magnets" button
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var buttons_bar=element("buttons_bar")
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appendChildren(buttons_bar,
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[ button("Show Magnets","show_word_magnets()","M", "show_magnets")]);
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}
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}
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function popUp(newPage, pageName)
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{
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window.open(newPage, pageName, "dependent = 1, scrollbars=1, location=1, statusbar=1, width=540, height=650, left = 10, top = 20");
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}
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function disable_all()
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{
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//disables the "Hint", "Check Answer", "Next Question" and "Previous Question" buttons + user answer area
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document.getElementById('check_answer').disabled = true;
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document.getElementById('next_question').disabled = true;
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document.getElementById('previous_question').disabled = true;
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document.getElementById('hint').disabled = true;
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document.getElementById('user_answer').disabled = true;
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}
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function set_mode()
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{
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//disable the grammar - To - From languages, and mode menubar
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document.getElementById('grammar_menu').disabled = true;
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document.getElementById('from_menu').disabled = true;
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document.getElementById('to_menu').disabled = true;
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document.getElementById('quiz_mode').disabled = true;
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selected_mode = element("quiz_mode").value;
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//sets the Quiz mode displayed
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document.getElementById('mode').value = selected_mode;
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/*-------------------------------------- Modes Settings --------------------------------------*/
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switch (selected_mode)
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{
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case "Easy Study Mode":
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have_minibar = true;
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have_prevQuestion = true;
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have_checkAns = true;
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max_hint_times = 100;
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break;
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case "Medium Study Mode":
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have_minibar = false;
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have_prevQuestion = true;
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have_checkAns = true;
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max_hint_times = 3;
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break;
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case "Hard Study Mode":
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have_minibar = false;
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have_prevQuestion = false;
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have_checkAns = true;
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max_hint_times = 1;
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break;
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case "Exam Mode":
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have_minibar = false;
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have_prevQuestion = false;
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have_checkAns = false;
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max_hint_times = 0;
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break;
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}
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}
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function reset_mode()
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{
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//enable the grammar - To - From languages, and mode menubar
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document.getElementById('grammar_menu').disabled = false;
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document.getElementById('from_menu').disabled = false;
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document.getElementById('to_menu').disabled = false;
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document.getElementById('quiz_mode').disabled = false;
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//clears the Quiz mode displayed
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document.getElementById('mode').value = "";
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}
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function remove_minibar()
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{
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if (have_minibar && is_ended == false )
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{
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//hide the minibar word magnets
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hide_element("minibar_contin");
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//hide the delete and clear buttons
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hide_element("minibar_buttons");
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}
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}
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function remove_unwanted_characters(txt)
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{
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//removes digits, special characters and extra spaces from user's answer
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txt = txt.replace(/[\u0021-\u0026 \u0028-\u0040 \u005b-\u0060 \u007b-\u007e]+/g,' ').replace(/^\s+|\s+$/g,'').replace(/\s+/g,' ');
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//changes the first character to lowercase
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txt= txt.replace(txt.charAt(0),txt.charAt(0).toLowerCase());
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return txt;
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}
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function split_to_words(str)
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{
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if (!(str == "" || str == null))
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str = str.split(" ");
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else
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str = "";
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return str;
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}
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function string_matching(serv_answer,use_answer)
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{
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var result = new Array();
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//for empty answers
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if ( use_answer== "" || use_answer== null)
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result= "";
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else
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{
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var min_length = Math.min(serv_answer.length, use_answer.length);
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var i=0;
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for (i= 0; i < min_length; i++)
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{
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if (serv_answer[i] == use_answer[i])
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result[i] = 1;
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else
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result[i] = 0;
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}
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//for answers with extra words (more than the number of words in the right answer)
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while ( i < use_answer.length)
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{
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result[i] = 0;
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i++;
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}
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}
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return result;
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}
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function sum_all(arr) {
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var s = 0;
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for (var i = 0; i < arr.length; i++)
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{
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s += arr[i];
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}
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return s;
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}
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function find_closest(all_ans)
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{
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var best_match = new Array();
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var comp = new Array();
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var server_answer2 = new Array();
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var max=0;
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var k = 0;
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for (k= 0; k < all_ans.length; k++)
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{
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server_answer = remove_unwanted_characters(all_ans[k]);
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server_answer2 = split_to_words(server_answer);
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comp = string_matching(server_answer2, user_answer_splited);
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var sum = sum_all(comp);
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if (sum >= max)
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{
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best_match = server_answer2;
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max= sum;
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}
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}
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return best_match;
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}
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function clearing()
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{
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//clears the question, answer and the explanation and hint display areas
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document.question.question_text.value= "...";
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document.answer.answer_text.value = "";
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document.explanation.explanation_text.value= "";
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document.getElementById("hint_txt").innerHTML = "";
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}
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//checks that the answer field is not empty
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function check_notEmpty()
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{
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if (document.answer.answer_text.value == null || document.answer.answer_text.value =="")
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{
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alert(" You have to write something first!");
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//sets the focus on the answer area
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document.answer.answer_text.focus();
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return false;
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}
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else
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return true;
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}
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