一些使用的javascript

//是否为电子邮件
function IsEmail(s) {
	var reg = /^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/;
	if (reg.test(s)) {
		return true;
	} else {
		return false;
	}	
}

	
//验证电话号码，只允许数字和“-”
function IsTel(s) {
	var reg = /[\d|-]{7,15}/;
	if (reg.test(s)) {
		return true;
	} else {
		return false;
	}
}
//判断是否是中文
function IsCh(s) {
	var reg = /[\u4e00-\u9fa5]/;
	if (reg.test(s)) {
		return true;
	} else {
		return false;
	}
}
function isGBK(s){
    var reg = /[\x01-\x7f]|[\x81-\xfe][\x40-\xfe]/;
	if (reg.test(s)) {
		return true;
	} else {
		return false;
	}
}
//判断输入是否全角字符
function IsSBCcase(s) {
	var reg = /[^\uFF00-\uFFFF]/;
	if (reg.test(s)) {
		return true;
	} else {
		return false;
	}
}
//是否国内电话号码
function IsPhone(s) {
	var reg = /\d{3}-\d{8}|\d{4}-\d{7}/;
	if (reg.test(s)) {
		return true;
	} else {
		return false;
	}
}
//是否腾讯QQ号 
function IsQQ(s) {
	var reg = /[1-9][0-9]{4,}/;
	if (reg.test(s)) {
		return true;
	} else {
		return false;
	}
}
//是否中国邮政编码
function IsDak(s) {
	var reg = /^\d{6}$/;
	if (reg.test(s)) {
		return true;
	} else {
		return false;
	}
}	
//是否身份证 
/*
function IsIdentityCard(s) {
	var reg = /\d{15}|\d{18}/;
	if (reg.test(s)) {
		return true;
	} else {
		return false;
	}
}
error: "21041119840809411a" is true
*/

// 是否身份证 
function IsIdentityCard(num) {
	num = (""+num).toUpperCase();
	if (!(/(^\d{15}$)|(^\d{17}([0-9]|X)$)/.test(num))) return false;
    return true;
}

//含有非数字字符 返回 true
function IsNumber(s) { //适于校验非负整数
	var reg = /^[01233456789]{1,}$/;
	if (reg.test(s)) {
		return true;
	} else {
		return false;
	}
}
//只能输入中文
function none_ch(obj){
var value=obj.value;
value=value.replace(/[\u4e00-\u9fa5]/g,'');
obj.value=value;
}
//只能输入数字
function none_butNumber(obj){
var value=obj.value;
value=value.replace(/[^\d\\.]/g,'');
obj.value=value;
}
//清空
/*function clearValue(obj){
  obj.value=='0.00';
  if(obj.value=='0.00')
  obj.select();
}*/
//金额格式化,这个函数请不要删除，虽然已经不用了。
function throw_off(obj){
	/*var value=obj.value;
	var oldValue = obj.value;
	if(value.substring(0,1)=='0'){
	  value=value.substring(1);
	}
	var i=value.indexOf('.');
	ar = value.split('.');
	if(ar.length >2 ){
	  if(value.substring(i,i+1)!='.')
	    value= value.substring(0,i+3);
	  else
	    value= value.substring(0,i+1);
	}
	if(i!=-1){
	 if(i+3<value.length)
	   value= value.substring(0,i+3)
	}
	value=value.replace(/[^\-\d\\.]/g,'');	
	var newValue = formatNum(value);
	if(newValue != oldValue){
		obj.value=newValue;
	}
		*/
}

function add_point(obj){
    /* var i =obj.value.indexOf('.');
     if(obj.value.substring(0,i)==''){
         obj.value=0+obj.value;
     }
	var value=obj.value;	
    if(parseFloat(value)!=0){
	  var i=value.indexOf('.');
		if(i==-1){
		  	obj.value=value+".00";
		}
		if(value.substring(i+1).length<2){
		   obj.value=value+"0";
		}
		if(value.substring(i)=='.'){
		   obj.value=value+"00";
		}
   }else{
      obj.value='0.00';
   }*/
}
function clearPoint(){
var nameArray = arguments;
for(i=0;i<nameArray.length;i++){
   var valueList = document.getElementsByName(nameArray[i]);
   for(j=0;j<valueList.length;j++){
     var ss=valueList[j].value; 
     valueList[j].value=ss.replace(/[\\,]/g,'');
   }
}
}
//将数字转换成三位逗号分隔的样式      
function formatNum(s){   
  var num ="";   
      num= s;
      if(!/^(\+|-)?\d+(\.\d+)?$/.test(num)){
      return num;
      }   
      var re = new RegExp().compile("(\\d)(\\d{3})(,|\\.|$)");   
      num += "";
      while(re.test(num))   
          num = num.replace(re,"$1,$2$3");   
      return num;
}
function getTextObject(name){
try{
var e=document.getElementsByName(name);
if(e.length>0)
return e[0];
}catch(e){
}
return '';
} 
//获取数字
function getIndex(s){
var regExp=/\D/g;
return s.replace(regExp,'');
}
//去得字母
function getchar(s){
  var ss="";
  var r;
  r = s.match(/[A-Za-z]/g);
  for(i=0;i<r.length;i++){
     ss+=r[i];
  }
  return ss;
}
/*
     功能：将货币数字（阿拉伯数字）(小写)转化成中文(大写）
 
     参数：Num为字符型,小数点之后保留两位,例：Arabia_to_Chinese("1234.06")
     说明：1.目前本转换仅支持到 拾亿（元） 位，金额单位为元，不能为万元，最小单位为分
          2.不支持负数
   */
function numtochinese(Num){
    for(i=Num.length-1;i>=0;i--){
	   Num = Num.replace(",","")//替换tomoney()中的“,”
	   Num = Num.replace(" ","")//替换tomoney()中的空格
    }
    Num = Num.replace("￥","")//替换掉可能出现的￥字符
    if(isNaN(Num)) 
    {
   //验证输入的字符是否为数字
   alert("请检查小写金额是否正确");
   return;
    }
    //---字符处理完毕，开始转换，转换采用前后两部分分别转换---//
    part = String(Num).split(".");
    newchar = ""; 
    //小数点前进行转化
    for(i=part[0].length-1;i>=0;i--)
    {
     if(part[0].length > 10){ alert("位数过大，无法计算");return "";}//若数量超过拾亿单位，提示
   tmpnewchar = ""
   perchar = part[0].charAt(i);
   switch(perchar){
   case "0": tmpnewchar="零" + tmpnewchar ;break;
   case "1": tmpnewchar="壹" + tmpnewchar ;break;
   case "2": tmpnewchar="贰" + tmpnewchar ;break;
   case "3": tmpnewchar="叁" + tmpnewchar ;break;
   case "4": tmpnewchar="肆" + tmpnewchar ;break;
   case "5": tmpnewchar="伍" + tmpnewchar ;break;
   case "6": tmpnewchar="陆" + tmpnewchar ;break;
   case "7": tmpnewchar="柒" + tmpnewchar ;break;
   case "8": tmpnewchar="捌" + tmpnewchar ;break;
   case "9": tmpnewchar="玖" + tmpnewchar ;break;
     }
     switch(part[0].length-i-1)
  {
   case 0: tmpnewchar = tmpnewchar +"元" ;break;
   case 1: if(perchar!=0)tmpnewchar= tmpnewchar +"拾" ;break;
   case 2: if(perchar!=0)tmpnewchar= tmpnewchar +"佰" ;break;
   case 3: if(perchar!=0)tmpnewchar= tmpnewchar +"仟" ;break; 
   case 4: tmpnewchar= tmpnewchar +"万" ;break;
   case 5: if(perchar!=0)tmpnewchar= tmpnewchar +"拾" ;break;
   case 6: if(perchar!=0)tmpnewchar= tmpnewchar +"佰" ;break;
   case 7: if(perchar!=0)tmpnewchar= tmpnewchar +"仟" ;break;
   case 8: tmpnewchar= tmpnewchar +"亿" ;break;
   case 9: tmpnewchar= tmpnewchar +"拾" ;break;
     }
     newchar = tmpnewchar + newchar;
    }
    //小数点之后进行转化
    if(Num.indexOf(".")!=-1)
    {
     if(part[1].length > 2)
     {
    alert("小数点之后只能保留两位,系统将自动截段");
    part[1] = part[1].substr(0,2)
   }
     for(i=0;i<part[1].length;i++)
     {
    tmpnewchar = ""
    perchar = part[1].charAt(i)
    switch(perchar){
    case "0": tmpnewchar="零" + tmpnewchar ;break;
    case "1": tmpnewchar="壹" + tmpnewchar ;break;
    case "2": tmpnewchar="贰" + tmpnewchar ;break;
    case "3": tmpnewchar="叁" + tmpnewchar ;break;
    case "4": tmpnewchar="肆" + tmpnewchar ;break;
    case "5": tmpnewchar="伍" + tmpnewchar ;break;
    case "6": tmpnewchar="陆" + tmpnewchar ;break;
    case "7": tmpnewchar="柒" + tmpnewchar ;break;
    case "8": tmpnewchar="捌" + tmpnewchar ;break;
    case "9": tmpnewchar="玖" + tmpnewchar ;break;
   }
   if(i==0)tmpnewchar =tmpnewchar + "角";
   if(i==1)tmpnewchar = tmpnewchar + "分";
   newchar = newchar + tmpnewchar;
     }
    }
    //替换所有无用汉字
    while(newchar.search("零零") != -1)
      newchar = newchar.replace("零零", "零");
    newchar = newchar.replace("零亿", "亿");
    newchar = newchar.replace("亿万", "亿");
    newchar = newchar.replace("零万", "万"); 
    newchar = newchar.replace("零元", "元");
    if (newchar.length == 5 && newchar.substr(0,1) == "元") {
    	newchar = newchar.replace("元", "");
    }
    newchar = newchar.replace("零角", "");
    newchar = newchar.replace("零分", "");
    
    if (newchar.length == 0) {
    	newchar = "零元";
    }
 
    if (newchar.charAt(newchar.length-1) == "元" || newchar.charAt(newchar.length-1) == "角")
     newchar = newchar+"整"
    return newchar;
}
  																		
//去除首尾空格
function Trim(s) {
	return s.replace(/(^\s+)|(\s+$)/g, "");
}
//去除全部空格	
function TrimAll(s) {
	return s.replace(/\s+/g, "");
}
//去除“'”	
function SafeInput(s) {
	return Trim(s.replace(/('+)/g, "\u2019"));
}	
//转换非法字符for Xml
function SafeXML(s) {
	s = s.replace(/(&+)/g, "&amp;");
	s = s.replace(/(>+)/g, "&gt;");
	s = s.replace(/(<+)/g, "&lt;");
	s = s.replace(/("+)/g, "&quot;");
	s = s.replace(/('+)/g, "&apos;");
	return s;
}
//转换非法字符for Xml
function SafeXMLSBCcase(s) {
	s = s.replace(/(>+)/g, "\uff1e");
	s = s.replace(/(<+)/g, "\uff1c");
	s = s.replace(/("+)/g, "\uff02");
	s = s.replace(/('+)/g, "\uff07");
	s = s.replace(/(&+)/g, "\uff06");
	return s;
}
//Html Encode
function HTMLEncode(s) {
	s = s.replace(/(\s+)/g, "&nbsp;");
	s = s.replace(/(\n+)/g, "<br/>");
	return s;
}	
//去除“&”
function SafeURL(s) {
	return Trim(s.replace(/(&+)/g, ""));
}
//去除所有不安全字符
function SafeAll(s) {
	return SafeXML(SafeURL(s));
}
	
//从身份证号里面得到日期
function getBirthdayFromIdno(IDno) {
	var strSeparator = "/" ;
	var sBirthday;
	if (IDno.length == 15) {
		sBirthday = "19" + IDno.substring(6, 8);
		sBirthday = sBirthday + strSeparator + IDno.substring(8, 10);
		sBirthday = sBirthday + strSeparator + IDno.substring(10, 12);
	}
	if (IDno.length == 18) {
		sBirthday = IDno.substring(6, 10);
		sBirthday = sBirthday + strSeparator + IDno.substring(10, 12);
		sBirthday = sBirthday + strSeparator + IDno.substring(12, 14);
	}
	return sBirthday;
}
	
//判断日期是否合法
//参数g_dateVal格式："1980-01-01"
function IsDate(g_dateVal) {
	var s = g_dateVal.replace(/-/g, "/");
	var newdate = new Date(s);
	var s = newdate.getYear();
	return isNAN(s);
} 
//判断是否位数字
function checkObjIsNumber(objtxt, izero) {
	var chname;
	if (typeof (objtxt.chname) == "undefined") {
		chname = "\u5bf9\u8c61";
	} else {
		chname = Trim(objtxt.chname);
		if (chname == "") {
			chname = "\u5bf9\u8c61";
		}
	}
	objtxt.value = Trim(objtxt.value);
	if (isNaN(parseFloat(objtxt.value))) {
		alert(chname + "\u4e0d\u662f\u6709\u6548\u6570\u5b57\uff01");
		objtxt.focus();
		return false;
	}
	objtxt.value = parseFloat(objtxt.value);
	if (izero > 0) {
		if (!(parseFloat(objtxt.value) > 0)) {
			alert(chname + "\u9700\u5927\u4e8e\u96f6\uff01");
			objtxt.focus();
			return false;
		}
	} else {
		if (izero >= 0) {
			if (!(parseFloat(objtxt.value) >= 0)) {
				alert(chname + "\u9700\u5927\u4e8e\u7b49\u4e8e\u96f6\uff01");
				objtxt.focus();
				return false;
			}
		}
	}
	return true;
}
//取得单选框值
function getRadioValue(objOpt) {
	for (var i = 0; i < objOpt.length; i++) {
		if (objOpt[i].checked) {
			return objOpt[i].value;
		}
	}
}
function Debug(message) {
	var newwin = window.open("", "Debug", "height=500, width=700,toolbar=0, menubar=0, scrollbars=1, resizable=1, location=0, status=0");
	newwin.opener = null; // 防止代码对页面修改  
	newwin.document.write("<html><body><h1>Debug</h1><br/>");
	newwin.document.write(message);
	newwin.document.write("<br/></body></html>");
	newwin.focus();
}