(转)收集几条jquery实用技巧

 收集几条jquery的实用技巧如下:

1) 检查IE是否是版本6
  

if ( (jQuery.browser.msie) && (parseInt(jQuery.browser.version) < 7) ) {
    $('body').prepend('<div class="warning">You are using an old version of Internet Explorer which is not supported.  Please upgrade your browser in order to view this website.</div>');
}

if ( (jQuery.browser.msie) && (parseInt(jQuery.browser.version) < 7) ) {
	$('body').prepend('<div class="warning">You are using an old version of Internet Explorer which is not supported.  Please upgrade your browser in order to view this website.</div>');
}

2) 打开一个打印的窗口
 

[url=#]Print this page[/url]
$('a.print').click(function(){
    window.print();
    return false;
});

[url=#]Print this page[/url]
$('a.print').click(function(){
	window.print();
	return false;
});

3 禁止表单使用回车键
  

$("#form").keypress(function(e) {
  if (e.which == 13) {
    return false;
  }
});

$("#form").keypress(function(e) {
  if (e.which == 13) {
    return false;
  }
});

4 全选和反选checkbox
 

 <div class="options">
    [list]
        [*][url=#]Select All[/url]

        [*][url=#]Reset All[/url]

    [/list]

    <input type="checkbox" id="option1" /><label for="option1">Option 1</label>
    <input type="checkbox" id="option2" /><label for="option2">Option 2</label>
    <input type="checkbox" id="option3" /><label for="option3">Option 3</label>
    <input type="checkbox" id="option4" /><label for="option4">Option 4</label>
</div>
$('.select-all').live('click', function(){
    $(this).closest('.options').find('input[type=checkbox]').attr('checked', true);
    return false;
});

$('.reset-all').live('click', function(){
    $(this).closest('.options').find('input[type=checkbox]').attr('checked', false);
    return false;
});

 <div class="options">
	[list]
		[*][url=#]Select All[/url]

		[*][url=#]Reset All[/url]

	[/list]

	<input type="checkbox" id="option1" /><label for="option1">Option 1</label>
	<input type="checkbox" id="option2" /><label for="option2">Option 2</label>
	<input type="checkbox" id="option3" /><label for="option3">Option 3</label>
	<input type="checkbox" id="option4" /><label for="option4">Option 4</label>
</div>
$('.select-all').live('click', function(){
	$(this).closest('.options').find('input[type=checkbox]').attr('checked', true);
	return false;
});

$('.reset-all').live('click', function(){
	$(this).closest('.options').find('input[type=checkbox]').attr('checked', false);
	return false;
});

5 平均分各个列
  有的时候,需要在表格中让各个列等分,可以这样

var max_height = 0;
$("div.col").each(function(){
    if ($(this).height() > max_height) { max_height = $(this).height(); }
});
$("div.col").height(max_height);

var max_height = 0;
$("div.col").each(function(){
    if ($(this).height() > max_height) { max_height = $(this).height(); }
});
$("div.col").height(max_height);

6 将所有的连接用新建窗口打开
  

$('a[@rel$='external']').click(function(){
     this.target = "_blank";
});

/*
   Usage:
   [url=http://www.catswhocode.com]catswhocode.com[/url]
*/