禁止右键点击
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1. $(document).ready(function(){
2.     $(document).bind("contextmenu",function(e){
3. return false;
4.     });
5. });
2. 隐藏搜索文本框文字view plaincopy to clipboardprint?
1. $(document).ready(function() {
2. $("input.text1").val("Enter your search text here");
3.    textFill($('input.text1'));
4. });
5.
6. function textFill(input){ //input focus text function
7. var originalvalue = input.val();
8.     input.focus( function(){
9. if( $.trim(input.val()) == originalvalue ){ input.val(''); }
10.     });
11.     input.blur( function(){
12. if( $.trim(input.val()) == '' ){ input.val(originalvalue); }
13.     });
14. }
3. 在新窗口中打开链接view plaincopy to clipboardprint?
1. $(document).ready(function() {
2. //Example 1: Every link will open in a new window
3.    $('a[href^="http://"]').attr("target", "_blank");
4.
5. //Example 2: Links with the rel="external" attribute will only open in a new window
6.    $('a[@rel$='external']').click(function(){
7. this.target = "_blank";
8.    });
9. });
10. // how to use
11. <A href="http://www.opensourcehunter.com" rel=external>open link</A>
4. 检测浏览器
注: 在版本jQuery 1.4中，$.support 替换掉了$.browser 变量。
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1. $(document).ready(function() {
2. // Target Firefox 2 and above
3. if ($.browser.mozilla && $.browser.version >= "1.8" ){
4. // do something
5. }
6.
7. // Target Safari
8. if( $.browser.safari ){
9. // do something
10. }
11.
12. // Target Chrome
13. if( $.browser.chrome){
14. // do something
15. }
16.
17. // Target Camino
18. if( $.browser.camino){
19. // do something
20. }
21.
22. // Target Opera
23. if( $.browser.opera){
24. // do something
25. }
26.
27. // Target IE6 and below
28. if ($.browser.msie && $.browser.version <= 6 ){
29. // do something
30. }
31.
32. // Target anything above IE6
33. if ($.browser.msie && $.browser.version > 6){
34. // do something
35. }
36. });