/*1. Disable right-click(禁用右键)Disable right-click contextual menu.*/$(document).ready(function(){ $(document).bind(”contextmenu”,function(e){ return false; }); }); /* * 2. Disappearing search field text(隐藏搜索文本框文字)Hide when clicked in the search field, the value.(example can be found below in the comment fields) */$(document).ready(function() { $(”input.text1″).val(”Enter your search text here”); textFill($('input.text1′)); });function textFill(input){ // input focus text functionvar originalvalue = input.val(); input.focus( function(){ if( $.trim(input.val()) == originalvalue ){ input.val(”); } }); input.blur( function(){if( $.trim(input.val()) == ” ){ input.val(originalvalue); } });}/*3. Opening links in a new window(在新窗口中打开链接)XHTML 1.0 Strict doesn't allow this attribute in the code, so use this to keep the code valid.*/$(document).ready(function() { // Example 1: Every link will open in a new window$('a[href^="http://"]').attr(”target”, "_blank”);// Example 2: Links with the rel=”external” attribute will only open in a new window$("a[rel$='external']").click(function(){this.target = "_blank"; }); });/*4. Detect browser(检测浏览器)Change/add something for a certain browser.Notice: As of jQuery 1.4, the $.browser variable is replaced by $.support. */$(document).ready(function() { // Target Firefox 2 and aboveif ($.browser.mozilla && $.browser.version >= "1.8″ ){ // do something}// Target Safariif( $.browser.safari ){ // do something}// Target Chromeif( $.browser.chrome){ // do something}// Target Caminoif( $.browser.camino){ // do something}// Target Operaif( $.browser.opera){ // do something}// Target IE6 and belowif ($.browser.msie && $.browser.version <= 6 ){// do something }// Target anything above IE6 if($.browser.msie && $.browser.version > 6){// do something}}); /*5. Preloading images(预加载图片)This piece of code will prevent the loading of all images, which can be useful if you have a site with lots of images.这段代码有问题*/$(document).ready(function() {jQuery.preloadImages = function(){for(var i = 0; i”).attr(”src”, arguments[i]); }}// how to use$.preloadImages(”image1.jpg”); }); /*6. css Styleswitcher(页面样式切换)Switch between different styles?*/$(document).ready(function() {$("a.Styleswitcher").click(function() {// swicth the LINK REL attribute with the value in A REL attribute$('link[rel=stylesheet]').attr('href' , $(this).attr('rel')); });});/*7. Columns of equal height(列高度相同)If you are using two css columns, use this to make them exactly the same height.*/$(document).ready(function() {function equalHeight(group) { tallest = 0; group.each(function() { thisHeight = $(this).height(); if(thisHeight > tallest) { tallest = thisHeight; } }); group.height(tallest); }// how to useequalHeight($(".left")); equalHeight($(".right")); }); /*8. Font resizing(动态控制页面字体大小)Want to let the users change there font size?*/$(document).ready(function() { // Reset the font size(back to default)var originalFontSize = $('html').css('font-size'); $(".resetFont").click(function(){ $('html').css('font-size', originalFontSize); }); // Increase the font size(bigger font0$(".increaseFont").click(function(){ var currentFontSize = $('html').css('font-size'); var currentFontSizeNum = parseFloat(currentFontSize, 10); var newFontSize = currentFontSizeNum*1.2; $('html').css('font-size', newFontSize); return false; }); // Decrease the font size(smaller font)$(".decreaseFont").click(function(){ var currentFontSize = $('html').css('font-size'); var currentFontSizeNum = parseFloat(currentFontSize, 10); var newFontSize = currentFontSizeNum*0.8; $('html').css('font-size', newFontSize); return false; }); }); /*9. Smooth(animated) page scroll( 返回页面顶部功能)For a smooth(animated) ride back to the top(or any location).*/$(document).ready(function() {$('a[href*=#]').click(function() { if (location.pathname.replace(/^///,"") == this.pathname.replace(/^///,"") && location.hostname == this.hostname) { var $target = $(this.hash); $target = $target.length && $target || $('[name=' + this.hash.slice(1) +']'); if ($target.length) { var targetOffset = $target.offset().top; $('html,body').animate({scrollTop: targetOffset}, 900); return false; }}});});/*11. Get the mouse cursor x and y axis(获得鼠标指针的坐标值)Want to know where your mouse cursor is?*/$(document).ready(function() {$().mousemove(function(e){// display the x and y axis values inside the div with the id XY$('#XY').html("X Axis : " + e.pageX + " | Y Axis " + e.pageY); });});/*12. Verify if an Element is empty(验证元素是否为空)This will allow you to check if an element is empty.*/$(document).ready(function() {if ($('#id').html()) {// do something}});/*13. Replace a element(替换元素)Want to replace a div, or something else?*/$(document).ready(function() { $('#id').replaceWith('I have been replaced
'); });/*14. jQuery timer callback functions(jQuery延时加载功能)Want to delay something?*/$(document).ready(function() { window.setTimeout(function() { // do something}, 1000); }); /*15. Remove a word(移除单词功能)Want to remove a certain word(s)?*/$(document).ready(function() { var el = $('#id'); el.html(el.html().replace(/word/ig, "")); });/*16. Verify that an element exists in jQuery(验证元素是否存在于 jQuery 对象集合中)Simply test with the .length property if the element exists.*/$(document).ready(function() { if ($('#id').length) { // do something}});/*17. Make the entire DIV clickable(使整个 Div 可点击)Want to make the complete div clickable?*/$(document).ready(function() {$("div").click(function(){// get the url from href attribute and launch the urlwindow.location=$(this).find("a").attr("href");return false; });});/*18. Switch between classes or id's when resizing the window.(ID与Class之间转换)Want to switch between a class or id, when resizing the window?*/$(document).ready(function() { function checkWindowSize() { if ( $(window).width() > 1200 ) { $('body').addClass('large'); } else {$('body').removeClass('large'); }}$(window).resize(checkWindowSize); });/*19. Clone a object(克隆对象)Clone a div or an other element.*/$(document).ready(function() {var cloned = $('#id').clone(); });});/*20. Center an element on the screen(使元素居屏幕中间位置)Center an element in the center of your screen.*/$(document).ready(function() {jQuery.fn.center = function () { this.css("position","absolute"); this.css("top", ( $(window).height() – this.height() ) / 2+$(window).scrollTop() + "px"); this.css("left", ( $(window).width() – this.width() ) / 2+$(window).scrollLeft() + "px"); return this; }$("#id").center(); });/*21. Write our own selector(写自己的选择器)Write your own selectors.*/$(document).ready(function() { $.extend($.expr[':'], {moreThen1000px: function(a) {return $(a).width() > 1000; }});$('.box:moreThen1000px').click(function() {// creating a simple js alert boxalert('The element that you have clicked is over 1000 pixels wide'); });});/*22. Count a element(统计元素个数)Count an element.*/$(document).ready(function() { $("p").size();});/*23. Use Your Own Bullets(使用自己的 Bullets)Want to use your own bullets instead of using the standard or images bullets?*/$(document).ready(function() { $("ul").addClass("Replaced"); $("ul > li").prepend("‒ "); });/*24. Let Google host jQuery for you(引用Google主机上的Jquery类库)Let Google host the jQuery script for you. This can be done in 2 ways.*/// Example 1 /*25. Disable jQuery animations(禁用Jquery（动画）效果)Disable all jQuery effects*/$(document).ready(function() { jQuery.fx.off = true;});/*26. No conflict-mode(与其他Javascript类库冲突解决方案)To avoid conflict other libraries on your website, you can use this jQuery Method, and assign a different variable name instead of the dollar sign.*/$(document).ready(function() {var $jq = jQuery.noConflict(); $jq('#id').show(); });
