/* $Id : utils.js 5052 2007-02-03 10:30:13Z weberliu $ */

var Browser = new Object();

Browser.isMozilla = (typeof document.implementation != 'undefined') && (typeof document.implementation.createDocument != 'undefined') && (typeof HTMLDocument != 'undefined');
Browser.isIE = window.ActiveXObject ? true : false;
Browser.isFirefox = (navigator.userAgent.toLowerCase().indexOf("firefox") != - 1);
Browser.isSafari = (navigator.userAgent.toLowerCase().indexOf("safari") != - 1);
Browser.isOpera = (navigator.userAgent.toLowerCase().indexOf("opera") != - 1);

var URLParams = new Object();

if(location.search)
{
	var tmp		= location.search.substr(1);
	var pair	= new Array();
	var tmp2	= new Array();
	
	if(pair = tmp.split('&'))
	{
		for(var i = 0; i < pair.length; i++)
		{
			if(!pair[i]) continue;

			tmp2 = pair[i].split('=');
			
			if(tmp2[0]) URLParams[tmp2[0]] = tmp2[1];
		}
	}
}



var Utils = new Object();

Utils.htmlEncode = function(text)
{
  return text.replace(/&/g, '&amp;').replace(/"/g, '&quot;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
}

Utils.trim = function( text )
{
  if (typeof(text) == "string")
  {
    return text.replace(/^\s*|\s*$/g, "");
  }
  else
  {
    return text;
  }
}

Utils.isEmpty = function( val )
{
  switch (typeof(val))
  {
    case 'string':
      return Utils.trim(val).length == 0 ? true : false;
      break;
    case 'number':
      return val == 0;
      break;
    case 'object':
      return val == null;
      break;
    case 'array':
      return val.length == 0;
      break;
    default:
      return true;
  }
}

Utils.isNumber = function(val)
{
  var reg = /^[\d|\.|,]+$/;
  return reg.test(val);
}

Utils.isInt = function(val)
{
  if (val == "")
  {
    return false;
  }
  var reg = /\D+/;
  return !reg.test(val);
}

Utils.isEmail = function( email )
{
  var reg1 = /([\w-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([\w-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)/;

  return reg1.test( email );
}

Utils.isTel = function ( tel )
{
  var reg = /^[\d|\-|\s|\_]+$/; //只允许使用数字-空格等

  return reg.test( tel );
}

Utils.fixEvent = function(e)
{
  var evt = (typeof e == "undefined") ? window.event : e;
  return evt;
}

Utils.srcElement = function(e)
{
  if (typeof e == "undefined") e = window.event;
  var src = document.all ? e.srcElement : e.target;

  return src;
}

Utils.isTime = function(val)
{
  var reg = /^\d{4}-\d{2}-\d{2}\s\d{2}:\d{2}$/;

  return reg.test(val);
}

Utils.x = function(e)
{ //当前鼠标X坐标
    return Browser.isIE?event.x + document.documentElement.scrollLeft - 2:e.pageX;
}

Utils.y = function(e)
{ //当前鼠标Y坐标
    return Browser.isIE?event.y + document.documentElement.scrollTop - 2:e.pageY;
}

Utils.request = function(url, item)
{
	var sValue=url.match(new RegExp("[\?\&]"+item+"=([^\&]*)(\&?)","i"));
	return sValue?sValue[1]:sValue;
}

Utils.$ = function(name)
{
    return document.getElementById(name);
}

function rowindex(tr)
{
  if (Browser.isIE)
  {
    return tr.rowIndex;
  }
  else
  {
    table = tr.parentNode.parentNode;
    for (i = 0; i < table.rows.length; i ++ )
    {
      if (table.rows[i] == tr)
      {
        return i;
      }
    }
  }
}

document.getCookie = function(sName)
{
  // cookies are separated by semicolons
  var aCookie = document.cookie.split("; ");
  for (var i=0; i < aCookie.length; i++)
  {
    // a name/value pair (a crumb) is separated by an equal sign
    var aCrumb = aCookie[i].split("=");
    if (sName == aCrumb[0])
      return decodeURIComponent(aCrumb[1]);
  }

  // a cookie with the requested name does not exist
  return null;
}

document.setCookie = function(sName, sValue, sExpires)
{
  var sCookie = sName + "=" + encodeURIComponent(sValue);
  if (sExpires != null)
  {
    sCookie += "; expires=" + sExpires;
  }

  document.cookie = sCookie;
}

document.removeCookie = function(sName,sValue)
{
  document.cookie = sName + "=; expires=Fri, 31 Dec 1999 23:59:59 GMT;";
}

function getPosition(o)
{
    var t = o.offsetTop;
    var l = o.offsetLeft;
    while(o = o.offsetParent)
    {
        t += o.offsetTop;
        l += o.offsetLeft;
    }
    var pos = {top:t,left:l};
    return pos;
}

function cleanWhitespace(element)
{
  var element = element;
  for (var i = 0; i < element.childNodes.length; i++) {
   var node = element.childNodes[i];
   if (node.nodeType == 3 && !/\S/.test(node.nodeValue))
     element.removeChild(node);
   }
}

function in_array(val, arr)
{
	if(!arr || !arr.length || arr.length <=0 ) return false;

	for(var i = 0; i < arr.length; i++)
	{
		if(val == arr[i]) return true;
	}
	
	return false;
}

function limitDecimal(obj,length,event)
{
var e = window.event || event;
if(obj.value.indexOf(".") == -1 || obj.value.indexOf(".") > length) return false;
if(e.keyCode == 37)return false;//解决光标向左移动的问题
var index = obj.value.indexOf(".");
if(obj.value.length-index-1 < length)return false;
obj.value = obj.value.substring(0,index) + obj.value.substr(index,length+1);
return false;
}

/*
	# 得到购物车数量..
*/
function getCartDetail()
{
	
	$.ajax({
	   type: "POST",
	   dataType: "json",
	   url: 'flow.php',
	   data: "step=show_cart",
	   success: function(msg){
		showCartResponse(msg);
	   }
	});
}
/*
	#展示cart
*/
function showCartResponse(msg)
{
	$("#sys_cart").html(msg)
}
function autoSelected(obj, defVal)
{
	if(!obj) return;
	
	if((typeof defVal).toLowerCase() != 'object')
	{
		var tmp = defVal;
		
		defVal = new Array();
		defVal[0] = tmp;
	}
	
	if(obj.tagName)
	{
		switch(obj.tagName.toLowerCase())
		{
			case 'select':
					for(var i = 0; i < obj.length; i++)
					{
						if(in_array(obj.options[i].value, defVal))
						{
							obj.options[i].selected = true;
						}
					}
			case 'input':
					if(obj.type.toLowerCase() == 'checkbox' || obj.type.toLowerCase() == 'radio')
					{
						if(in_array(obj.value, defVal))
						{
							obj.checked = true;
						}
					}
					break;
		}
	}
	else
	{
		for(var i = 0; i < obj.length; i++)
		{
			if(obj[i].tagName.toLowerCase() == 'select')
			{
				for(var j = 0; j < obj[i].length; j++)
				{
					if(in_array(obj[i].options[j].value, defVal))
					{
						obj[i].options[j].selected = true;
					}
				}
			}
			else if(obj[i].tagName.toLowerCase() == 'input')
			{
				if(in_array(obj[i].value, defVal))
				{
					obj[i].checked = true;
				}
			}
		}
	}
}

function copyText(objId) {
     var obj = document.getElementById(objId);
     obj.select();
     document.execCommand("Copy");
	 alert('内容已经复制到您的粘贴板！');
}