js一组验证函数

//字符处理; 
//去左右空格; 
function trim(s){ 
return rtrim(ltrim(s)); 
} 
//去左空格; 
function ltrim(s){ 
return s.replace( /^\s*/, ""); 
} 
//去右空格; 
function rtrim(s){ 
return s.replace( /\s*$/, ""); 
} 
//验证信息; 
//空字符值; 
function isEmpty(s){ 
s = trim(s); 
return s.length == 0; 
} 
//Email; 
function isEmail(s){ 
s = trim(s); 
var p = /^[_\.0-9a-z-]+@([0-9a-z][0-9a-z-]+\.){1,4}[a-z]{2,3}$/i; 
return p.test(s); 
} 
//数字; 
function isNumber(s){ 
return !isNaN(s); 
} 
//颜色值; 
function isColor(s){ 
s = trim(s); 
if (s.length !=7) return false; 
return s.search(/\#[a-fA-F0-9]{6}/) != -1; 
} 
//手机号码; 
function isMobile(s){ 
s = trim(s); 
var p = /13\d{9}/; 
return p.test(s); 
} 
//身份证; 
function isCard(s){ 
s = trim(s); 
var p = /^\d{15}(\d{2}[xX0-9])?$/; 
return p.test(s); 
} 
//URL; 
function isURL(s){ 
s = trim(s).toLowerCase(); 
var p = /^http:\/\/[A-Za-z0-9]+\.[A-Za-z0-9]+[\/=\?%\-&_~`@[\]\':+!]*([^<>\"\"])*$/; 
return p.test(s); 
} 
//Phone; 
function isPhone(s){ 
s = trim(s); 
var p = /^((\(\d{3}\))|(\d{3}\-))?(\(0\d{2,3}\)|0\d{2,3}-)?[1-9]\d{6,7}$/; 
return p.test(s); 
} 
//Zip; 
function isZip(s){ 
s = trim(s); 
var p = /^[1-9]\d{5}$/; 
return p.test(s); 
} 
//Double; 
function isDouble(s){ 
s = trim(s); 
var p = /^[-\+]?\d+(\.\d+)?$/; 
return p.test(s); 
} 
//Integer; 
function isInteger(s){ 
s = trim(s); 
var p = /^[-\+]?\d+$/; 
return p.test(s); 
} 
//English; 
function isEnglish(s){ 
s = trim(s); 
var p = /^[A-Za-z]+$/; 
return p.test(s); 
} 
//中文; 
function isChinese(s){ 
s = trim(s); 
var p = /^[\u0391-\uFFE5]+$/; 
return p.test(s); 
} 
//双字节 
function isDoubleChar(s){ 
var p = /^[^\x00-\xff]+$/; 
return p.test(s); 
} 
//含有中文字符 
function hasChineseChar(s){ 
var p = /[^\x00-\xff]/; 
return p.test(s); 
} 
function hasAccountChar(s){ 
var p = /^[a-zA-Z0-9][a-zA-Z0-9_-]{0,15}$/; 
return p.test(s); 
} 
function limitLen(s,Min,Max){ 
s=trim(s); 
if(s=="") return false; 
if((s.length<Min)||(s.length>Max)) 
return false; 
else 
return true; 
}