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Sum of two random numbers © JavaScriptBank.comType or make two numbers have the sum equalled or less 18, then clicking buttons for the sum of two that numbers , view the right; wrong choices and the ratio.

Full version: jsB@nk » Calculation » Math » Sum of two random numbers
URL: http://www.javascriptbank.com/sum-of-two-random-numbers.html



CSS
<style type="text/css">/*     This script downloaded from www.JavaScriptBank.com     Come to view and download over 2000+ free javascript at www.JavaScriptBank.com*/.jsbank_sample_cont {margin: 20px; padding: 20px;}.jsbank_sample_tit {font-weight: bold; margin-bottom: 10px; padding: 5px; width: auto; background-color: #c0c0c0; border: 5px solid #a0a0a0; color: black; text-align: center;}/*Created by: Felix Plesoianu Web Site: http://shadow-v.home.ro/index.html*/table.calendar, table.calendar caption, table.calendar td.in_month { border: 1px solid black;  background-color: #ffcf31;  text-align: center;}table.calendar td.in_month {  width: 30px;}table.calendar td.selected {  background-color: #ffe68f;}table.calendar a { display: block; font-weight: bold; text-decoration: none; color: #0000ff;  text-align: center;}table.calendar caption a { display: inline;  font-size: .8em;}</style><!--    This script downloaded from www.JavaScriptBank.com    Come to view and download over 2000+ free javascript at www.JavaScriptBank.com-->


JavaScript
<script language="javascript">// fcp.Calendar - simple Calendar control for Javascript// Copyright (C) 2006 Felix Plesoianu// This file is distributed under the MIT license.// http://www.opensource.org/licenses/mit-license.phpif (!fcp)var fcp = new Object();if (!fcp.msg)fcp.msg = new Object();fcp.week_days = ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"];fcp.months = ["January", "February", "March", "April", "May", "June","July", "August", "September", "October", "November", "December"];fcp.msg.prev_year = "Previous year";fcp.msg.prev_month = "Previous month";fcp.msg.next_month = "Next month";fcp.msg.next_year = "Next year";fcp.Calendar = function(element, show_clock) {if (!element.childNodes)throw "HTML element expected";this.element = element;this.selection = new Date();this.show_clock = show_clock;this.selected_cell = undefined;this.generate_month();this.render_calendar();}fcp.Calendar.prototype.set_date_time = function (date_time) {if (date_time.constructor == Date) {this.selection = date_time;this.generate_month();this.render_calendar();} else {throw "Date object expected (in fcp.Calendar.set_date_time)";}}fcp.Calendar.prototype.next_month = function () {var month = this.selection.getMonth();if (month == 11) {this.selection.setMonth(0);this.selection.setYear(this.selection.getFullYear() + 1);} else {this.selection.setMonth(month + 1);}this.generate_month();this.render_calendar();}fcp.Calendar.prototype.prev_month = function () {var month = this.selection.getMonth();if (month == 0) {this.selection.setMonth(11);this.selection.setYear(this.selection.getFullYear() - 1);} else {this.selection.setMonth(month - 1);}this.generate_month();this.render_calendar();}fcp.Calendar.prototype.next_year = function () {var is_feb29 = (this.selection.getMonth() == 1)&& (this.selection.getDate() == 29);if (is_feb29) {this.selection.setDate(1);this.selection.setMonth(2); // March}this.selection.setFullYear(this.selection.getFullYear() + 1);this.generate_month();this.render_calendar();}fcp.Calendar.prototype.prev_year = function () {var is_feb29 = (this.selection.getMonth() == 1)&& (this.selection.getDate() == 29);if (is_feb29) {this.selection.setDate(1);this.selection.setMonth(2); // March}this.selection.setFullYear(this.selection.getFullYear() - 1);this.generate_month();this.render_calendar();}fcp.Calendar.prototype.generate_month = function () {this.raw_data = new Array();var week = 0;this.raw_data[week] = new Array(7);var first_of_month = fcp.Calendar.clone_date(this.selection);first_of_month.setDate(1);var first_weekday = first_of_month.getDay();// Move Sunday lastfirst_weekday = (first_weekday == 0) ? 6 : first_weekday - 1;// Fill in the last days from the previous month.for (var i = 0; i < first_weekday; i++) {this.raw_data[week][i] = 0;}var last_of_month = fcp.Calendar.days_in_month(this.selection.getYear(),this.selection.getMonth());var weekday = first_weekday;for (var i = 1; i <= last_of_month; i++) {this.raw_data[week][weekday] = i;weekday++;if (weekday > 6) {weekday = 0;week++;this.raw_data[week] = new Array(7);}}// Fill in the first days from the next month.for (var i = weekday; i < 7; i++) {this.raw_data[week][i] = 0;}}fcp.Calendar.prototype.render_calendar = function () {this.element.selected_cell = undefined;this.element.innerHTML = "";this.element.appendChild(this.render_month());}fcp.Calendar.prototype.render_heading = function () {var heading = document.createElement("caption");var prev_year = document.createElement("a");prev_year.href = "#";prev_year.calendar = this;prev_year.onclick = function() {this.calendar.prev_year();return false;};prev_year.innerHTML = "<<";prev_year.title = fcp.msg.prev_year;var prev_month = document.createElement("a");prev_month.href = "#";prev_month.calendar = this;prev_month.onclick = function() {this.calendar.prev_month();return false;};prev_month.innerHTML = "<";prev_month.title = fcp.msg.prev_month;var month_year = document.createTextNode("\u00a0\u00a0" + fcp.months[this.selection.getMonth()]+ " " + this.selection.getFullYear() + "\u00a0\u00a0");var next_month = document.createElement("a");next_month.href = "#";next_month.calendar = this;next_month.onclick = function() {this.calendar.next_month();return false;};next_month.innerHTML = ">";next_month.title = fcp.msg.next_month;var next_year = document.createElement("a");next_year.href = "#";next_year.calendar = this;next_year.onclick = function() {this.calendar.next_year();return false;};next_year.innerHTML = ">>";next_year.title = fcp.msg.next_year;heading.appendChild(prev_year);heading.appendChild(document.createTextNode("\u00a0\u00a0"));heading.appendChild(prev_month);heading.appendChild(month_year);heading.appendChild(next_month);heading.appendChild(document.createTextNode("\u00a0\u00a0"));heading.appendChild(next_year);return heading;}fcp.Calendar.prototype.render_month = function() {var html_month = document.createElement("table");html_month.className = "calendar";html_month.appendChild(this.render_heading());var thead = document.createElement("thead");var tr = document.createElement("tr");for (var i = 0; i < fcp.week_days.length; i++) {var th = document.createElement("th");th.innerHTML =  fcp.week_days[i];tr.appendChild(th);}thead.appendChild(tr);html_month.appendChild(thead);var tbody = document.createElement("tbody");for (var i = 0; i < this.raw_data.length; i++) {tbody.appendChild(this.render_week(this.raw_data[i]));}html_month.appendChild(tbody);return html_month;}fcp.Calendar.prototype.render_week = function (day_numbers) {var html_week = document.createElement("tr");html_week.align = "right";for (var i = 0; i < 7; i++) {html_week.appendChild(this.render_day(day_numbers[i]));}return html_week;}fcp.Calendar.prototype.render_day = function (day_number) {var td = document.createElement("td");if (day_number >= 1 && day_number <= 31) {var anchor = document.createElement("a");anchor.href = "#";anchor.innerHTML = day_number;anchor.calendar = this;anchor.date = day_number;anchor.onclick = fcp.Calendar.handle_select;td.appendChild(anchor);if (day_number == this.selection.getDate()) {this.selected_cell = td;td.className = "in_month selected";} else {td.className = "in_month";}}return td;}// Do nothing by default.fcp.Calendar.prototype.onselect = function () {}fcp.Calendar.clone_date = function (date_obj) {if (date_obj.constructor != Date)throw "Date object expected (in fcp.Calendar.clone_date)";elsereturn new Date(date_obj.getFullYear(),date_obj.getMonth(),date_obj.getDate(),date_obj.getHours(),date_obj.getMinutes(),date_obj.getSeconds());}fcp.Calendar.days_in_month = function (year, month) {if (month < 0 || month > 11)throw "Month must be between 0 and 11";var day_count = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];if (month != 1) {return day_count[month];} else if ((year % 4) != 0) {return 28;} else if ((year % 400) == 0) {return 29;} else if ((year % 100) == 0) {return 28;} else {return 29;}}fcp.Calendar.handle_select = function () {if (this.calendar.selected_cell)this.calendar.selected_cell.className = "in_month";this.calendar.selected_cell = this.parentNode;this.parentNode.className = "in_month selected";this.calendar.selection.setDate(this.date);this.calendar.onselect(this.calendar.selection);return false;}// Created by: Simon Willison// http://simon.incutio.com/archive/2004/05/26/addLoadEventfunction addLoadEvent(func) {  var oldonload = window.onload;  if (typeof window.onload != 'function') {    window.onload = func;  } else {    window.onload = function() {      if (oldonload) {        oldonload();      }      func();    }  }}addLoadEvent(function() {// function() {  cal = new fcp.Calendar(document.getElementById("cal_placeholder"));  cal.onselect = function(date) {alert(date);}; } )</script><!--    This script downloaded from www.JavaScriptBank.com    Come to view and download over 2000+ free javascript at www.JavaScriptBank.com-->


HTML
<div id="cal_placeholder"></div><!--    This script downloaded from www.JavaScriptBank.com    Come to view and download over 2000+ free javascript at www.JavaScriptBank.com-->