10.缓存？？？dialog
window.showModalDialog弹出的 Dialog 无刷新，加上缓存的机制，修改的前端代码不会被即使更新，
在coding的时候比较麻烦，用户使用的时候感本人觉上没什么的大的影响，除非特殊的使用。
为此据说可以在URl上加 &__=new Date()，就能解决
11.focus（）& blur（）
写代码一定要细心，细节决定成败啊。从下层的意见反馈到上层的回复再到下层的执行，
不晓的要多久才能决定一个feature，由于人人都怕麻烦，依旧决定使用N年前的alert（）来进行validate。
粗心的我在使用JQuery的blur（）和focus（）检查了N旧都不知道错在哪里，当事件失焦的时候触发一个function，
不满足条件是进行alert（）；forcus（）。不晓的咋的，在条件判断中也写了一个forcus（），完了，无线的弹出alert（）；
死了。在使用此函式的时候一定要逻辑清晰。不过这种也算是一个恶意代码吧。。。
12.JQuery 中$("title").html("XXX")在IE中会出现Unexpected call to method or property access.
主要是因为append（）方法。它使用了getDocumentByTagName（），当遇到title的时候使用innerHtml等方法来添加或者
修改title的content时候就会出现这个问题了。
明明javascript中有个document.title的方法。唉，直接使用就好了。
这个还是多亏了NetBeans的对javascript良好的支持，代码补全，尤其是代码提示上的那个解释和Demo。让我为之感动啊
基础不良，记忆超差的我在这里力挺下。Sun被收购，不知道NetBeans下落会如何，伤心ing。。。
13.javascript 使用正则表达式——常用代码验证
// http://docs.jquery.com/Plugins/Validation/Methods/minlength
minlength: function(value, element, param) {
return this.optional(element) || this.getLength($.trim(value), element) >= param;
},
// http://docs.jquery.com/Plugins/Validation/Methods/maxlength
maxlength: function(value, element, param) {
return this.optional(element) || this.getLength($.trim(value), element) <= param;
},
// http://docs.jquery.com/Plugins/Validation/Methods/rangelength
rangelength: function(value, element, param) {
var length = this.getLength($.trim(value), element);
return this.optional(element) || ( length >= param[0] && length <= param[1] );
},
// http://docs.jquery.com/Plugins/Validation/Methods/min
min: function( value, element, param ) {
return this.optional(element) || value >= param;
},
// http://docs.jquery.com/Plugins/Validation/Methods/max
max: function( value, element, param ) {
return this.optional(element) || value <= param;
},
// http://docs.jquery.com/Plugins/Validation/Methods/range
range: function( value, element, param ) {
return this.optional(element) || ( value >= param[0] && value <= param[1] );
},
// http://docs.jquery.com/Plugins/Validation/Methods/email
email: function(value, element) {
// contributed by Scott Gonzalez: http://projects.scottsplayground.com/email_address_validation/
return this.optional(element) ||
/^((([a-z]|\d|[!#\$%&’*+-\/=\?\^`{|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+(.([a-z]|\d|[!#\$%&’*+-\/=\?\^`{|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+))|((\x22)((((\x20|\x09)(\x0d\x0a))?(\x20|\x09)+)?(([\x01-\x08\x0b\x0c\x0e-\x1f\x7f]|\x21|[\x23-\x5b]|[\x5d-\x7e]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(\([\x01-\x09\x0b\x0c\x0d-\x7f]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))))(((\x20|\x09)(\x0d\x0a))?(\x20|\x09)+)?(\x22)))@((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|.||~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))).)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|.||~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))).?$/i.test(value);
},
// http://docs.jquery.com/Plugins/Validation/Methods/url
url: function(value, element) {
// contributed by Scott Gonzalez: http://projects.scottsplayground.com/iri/
return this.optional(element) ||
/^(https?|ftp):\/\/(((([a-z]|\d|-|.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&’()\+,;=]|:)@)?(((\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5]).(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5]).(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5]).(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5]))|((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))).)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|.||~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))).?)(:\d)?)(\/((([a-z]|\d|-|.||~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&’()*+,;=]|:|@)+(\/(([a-z]|\d|-|.||~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&’()*+,;=]|:|@)))?)?(\?((([a-z]|\d|-|.||~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&’()*+,;=]|:|@)|[\uE000-\uF8FF]|\/|\?))?(#((([a-z]|\d|-|.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&’()\+,;=]|:|@)|\/|\?))?$/i.test(value);
},
// http://docs.jquery.com/Plugins/Validation/Methods/date
date: function(value, element) {
return this.optional(element) || !/Invalid|NaN/.test(new Date(value));
},
// http://docs.jquery.com/Plugins/Validation/Methods/dateISO
dateISO: function(value, element) {
return this.optional(element) || /^\d{4}[\/-]\d{1,2}[\/-]\d{1,2}$/.test(value);
},
// http://docs.jquery.com/Plugins/Validation/Methods/dateDE
dateDE: function(value, element) {
return this.optional(element) || /^\d\d?.\d\d?.\d\d\d?\d?$/.test(value);
},
// http://docs.jquery.com/Plugins/Validation/Methods/number
number: function(value, element) {
return this.optional(element) || /^-?(?:\d+|\d{1,3}(?:,\d{3})+)(?:.\d+)?$/.test(value);
},
// http://docs.jquery.com/Plugins/Validation/Methods/numberDE
numberDE: function(value, element) {
return this.optional(element) || /^-?(?:\d+|\d{1,3}(?:.\d{3})+)(?:,\d+)?$/.test(value);
},
// http://docs.jquery.com/Plugins/Validation/Methods/digits
digits: function(value, element) {
return this.optional(element) || /^\d+$/.test(value);
},
// http://docs.jquery.com/Plugins/Validation/Methods/creditcard
// based on http://en.wikipedia.org/wiki/Luhn
creditcard: function(value, element) {
if ( this.optional(element) )
return "dependency-mismatch";
// accept only digits and dashes
if (/[^0-9-]+/.test(value))
return false;
var nCheck = 0,
nDigit = 0,
bEven = false;
value = value.replace(/\D/g, "");
for (n = value.length - 1; n >= 0; n–) {
var cDigit = value.charAt(n);
var nDigit = parseInt(cDigit, 10);
if (bEven) {
if ((nDigit = 2) > 9)
nDigit -= 9;
}
nCheck += nDigit;
bEven = !bEven;
}
return (nCheck % 10) == 0;
},
// http://docs.jquery.com/Plugins/Validation/Methods/accept
accept: function(value, element, param) {
param = typeof param == "string" ? param.replace(/,/g, ‘|’) : "png|jpe?g|gif";
return this.optional(element) || value.match(new RegExp(".(" + param + ")$", "i"));
},
// http://docs.jquery.com/Plugins/Validation/Methods/equalTo
equalTo: function(value, element, param) {
return value == $(param).val();
}