/* $Id : utils.js 5052 2007-02-03 10:30:13Z weberliu $ */
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var Browser = new Object();
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Browser.isMozilla = (typeof document.implementation != 'undefined') && (typeof document.implementation.createDocument != 'undefined') && (typeof HTMLDocument != 'undefined');
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Browser.isIE = window.ActiveXObject ? true : false;
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Browser.isFirefox = (navigator.userAgent.toLowerCase().indexOf("firefox") != - 1);
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Browser.isSafari = (navigator.userAgent.toLowerCase().indexOf("safari") != - 1);
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Browser.isOpera = (navigator.userAgent.toLowerCase().indexOf("opera") != - 1);
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var Utils = new Object();
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Utils.htmlEncode = function(text)
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{
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return text.replace(/&/g, '&').replace(/"/g, '"').replace(/</g, '<').replace(/>/g, '>');
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}
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Utils.trim = function( text )
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{
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if (typeof(text) == "string")
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{
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return text.replace(/^\s*|\s*$/g, "");
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}
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else
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{
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return text;
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}
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}
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Utils.isEmpty = function( val )
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{
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switch (typeof(val))
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{
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case 'string':
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return Utils.trim(val).length == 0 ? true : false;
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break;
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case 'number':
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return val == 0;
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break;
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case 'object':
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return val == null;
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break;
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case 'array':
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return val.length == 0;
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break;
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default:
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return true;
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}
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}
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Utils.isNumber = function(val)
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{
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var reg = /^[\d|\.|,]+$/;
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return reg.test(val);
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}
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Utils.isInt = function(val)
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{
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if (val == "")
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{
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return false;
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}
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var reg = /\D+/;
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return !reg.test(val);
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}
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Utils.isEmail = function( email )
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{
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var reg1 = /([\w-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([\w-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)/;
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return reg1.test( email );
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}
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Utils.isMobile = function ( mobile )
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{
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var reg = /^1\d{10}$/; //11位数字，以1开头。
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return reg.test( mobile );
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}
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Utils.isTel = function ( tel )
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{
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var reg = /^[\d|\-|\s|\_]+$/; //只允许使用数字-空格等
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reg = /^(0[0-9]{2,3}-)?([2-9][0-9]{6,7})+(-[0-9]{1,4})?$/;
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return reg.test( tel );
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}
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Utils.fixEvent = function(e)
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{
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var evt = (typeof e == "undefined") ? window.event : e;
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return evt;
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}
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Utils.srcElement = function(e)
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{
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if (typeof e == "undefined") e = window.event;
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var src = document.all ? e.srcElement : e.target;
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return src;
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}
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Utils.isTime = function(val)
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{
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var reg = /^\d{4}-\d{2}-\d{2}\s\d{2}:\d{2}$/;
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return reg.test(val);
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}
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Utils.x = function(e)
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{ //当前鼠标X坐标
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return Browser.isIE?event.x + document.documentElement.scrollLeft - 2:e.pageX;
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}
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Utils.y = function(e)
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{ //当前鼠标Y坐标
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return Browser.isIE?event.y + document.documentElement.scrollTop - 2:e.pageY;
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}
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Utils.request = function(url, item)
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{
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var sValue=url.match(new RegExp("[\?\&]"+item+"=([^\&]*)(\&?)","i"));
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return sValue?sValue[1]:sValue;
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}
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Utils.$ = function(name)
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{
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return document.getElementById(name);
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}
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function rowindex(tr)
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{
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if (Browser.isIE)
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{
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return tr.rowIndex;
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}
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else
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{
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table = tr.parentNode.parentNode;
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for (i = 0; i < table.rows.length; i ++ )
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{
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if (table.rows[i] == tr)
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{
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return i;
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}
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}
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}
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}
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document.getCookie = function(sName)
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{
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// cookies are separated by semicolons
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var aCookie = document.cookie.split("; ");
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for (var i=0; i < aCookie.length; i++)
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{
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// a name/value pair (a crumb) is separated by an equal sign
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var aCrumb = aCookie[i].split("=");
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if (sName == aCrumb[0])
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return decodeURIComponent(aCrumb[1]);
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}
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// a cookie with the requested name does not exist
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return null;
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}
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document.setCookie = function(sName, sValue, sExpires)
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{
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var sCookie = sName + "=" + encodeURIComponent(sValue);
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if (sExpires != null)
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{
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sCookie += "; expires=" + sExpires;
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}
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document.cookie = sCookie;
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}
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document.removeCookie = function(sName,sValue)
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{
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document.cookie = sName + "=; expires=Fri, 31 Dec 1999 23:59:59 GMT;";
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}
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function getPosition(o)
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{
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var t = o.offsetTop;
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var l = o.offsetLeft;
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while(o = o.offsetParent)
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{
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t += o.offsetTop;
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l += o.offsetLeft;
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}
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var pos = {top:t,left:l};
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return pos;
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}
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function cleanWhitespace(element)
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{
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var element = element;
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for (var i = 0; i < element.childNodes.length; i++) {
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var node = element.childNodes[i];
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if (node.nodeType == 3 && !/\S/.test(node.nodeValue))
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element.removeChild(node);
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}
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}
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