上地五街的忧伤

1）禁用右键单击功能 

如果你想为用户节省网站信息，那么开发者可以使用这段代码——禁用右键单击功能。

<font><font>$(document).ready(function() {
//catch the right-click context menu
$(document).bind("contextmenu",function(e) { 
//warning prompt - optional
alert("No right-clicking!");

//delete the default context menu
return false;
});
});</font></font>

2）使用jQuery设定文本大小

<font><font>$(document).ready(function() {
//find the current font size
var originalFontSize = $('html').css('font-size');

//Increase the text size
$(".increaseFont").click(function() {
var currentFontSize = $('html').css('font-size');
var currentFontSizeNumber = parseFloat(currentFontSize, 10);

var newFontSize = currentFontSizeNumber*1.2;
$('html').css('font-size', newFontSize);
return false;
});

//Decrease the Text Size
$(".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;
});

// Reset Font Size
$(".resetFont").click(function(){
$('html').css('font-size', originalFontSize);
});
});</font></font>

3）在新窗口打开链接

$(document).ready(function() {
//select all anchor tags that have http in the href
//and apply the target=_blank
$("a[href^='http']").attr('target','_blank');
});

4）更改样式列表使用这段代码帮助你更改样式列表。

$(document).ready(function() {
$(“a.cssSwap”).click(function() { 
//swap the link rel attribute with the value in the rel 
$(‘link[rel=stylesheet]’).attr(‘href’ , $(this).attr(‘rel’)); 
}); 
});
5）返回到顶部链接

$(document).ready(function() {
//when the id="top" link is clicked
$('#top').click(function() {
//scoll the page back to the top
$(document).scrollTo(0,500);
}
});

6）获取鼠标指针的X / Y轴

<font><font>$().mousemove(function(e){
//display the x and y axis values inside the P element
$('p').html("X Axis : " + e.pageX + " | Y Axis " + e.pageY);
});</font></font>

7）检测当前鼠标坐标

$(document).ready(function() {
$().mousemove(function(e)
{
$('# MouseCoordinates ').html("X Axis Position = " + e.pageX + " and Y Axis Position = " + e.pageY);
});

8）图片预加载

<font><font>jQuery.preloadImagesInWebPage = function() 
{
for(var ctr = 0; ctr<arguments.length; ctr++)
{
jQuery("").attr("src", arguments[ctr]);
}
}
To use the above method, you can use the following piece of code:
$.preloadImages("image1.gif", "image2.gif", "image3.gif");
To check whether an image has been loaded, you can use the following piece of code:
$('#imageObject').attr('src', 'image1.gif').load(function() {
alert('The image has been loaded…');
});</font></font>

原文出自： Designzum