<!-- hide
function killerrors() {
return true;
}
window.onerror = killerrors;
// -->
function isusername (s)
{
         var regu = "^([a-za-z]+[_0-9a-za-z@.-]*)$"
         var re = new regexp(regu);
         if (s.search(re) != -1) {
               return true;
         } else {
               window.alert ("请使用规范的会员名！")
               return false;
         }
}

	function ismobile(s) {
    //pattern: 手机号为数字，长度大于等于8且小于等于11
    var patrn = /^(\d{7,11})?$/;
    if (!patrn.exec(s)) return false
    return true
    }

function isemail (s)
{
        // writen by david, we can delete the before code
        if (s.length > 50)
        {
                window.alert("email地址长度不能超过50位!");
                return false;
        }
		s = s.tolowercase()
//         var regu = "^(([0-9a-za-z]+)|([0-9a-za-z]+[_.0-9a-za-z-]*[0-9a-za-z]+))@([a-za-z0-9-]+[.])+([a-za-z]{2}|net|net|com|com|gov|gov|mil|mil|org|org|edu|edu|int|int)$"
         //var regu = "^(([0-9a-za-z]+)|([0-9a-za-z]+[_.0-9a-za-z-]*))@([a-za-z0-9-]+[.])+([a-za-z]{2}|net|net|com|com|gov|gov|mil|mil|org|org|edu|edu|int|int|name|name)$"
		 //modified by ryan gao 2005-12-16
		 //var regu = "^(([0-9a-za-z]+)|([0-9a-za-z]+[_.0-9a-za-z-]*[_.0-9a-za-z]+))@([a-za-z0-9-]+[.])+([a-za-z]{2}|net|net|com|com|gov|gov|mil|mil|org|org|edu|edu|int|int|name|name)$";
		 //modified by ryan gao 2005-12-28 电子邮件地址结尾有_(如126)
		 var regu = "^(([0-9a-za-z]+)|([0-9a-za-z]+[_.0-9a-za-z-]*))@([a-za-z0-9-]+[.])+([a-za-z]{2}|net|net|com|com|gov|gov|mil|mil|org|org|edu|edu|int|int|name|name)$";
		 var re = new regexp(regu);
         if (s.search(re) != -1) {
               return true;
         } else {
               window.alert ("请输入有效合法的e-mail地址 ！");
               return false;
         }
}

function isemail_e (s)
{
        // writen by david, we can delete the before code
        if (s.length > 100)
        {
                window.alert("the email adress should be less than 100 characters!");
                return false;
        }
//         var regu = "^(([0-9a-za-z]+)|([0-9a-za-z]+[_.0-9a-za-z-]*[0-9a-za-z]+))@([a-za-z0-9-]+[.])+([a-za-z]{2}|net|net|com|com|gov|gov|mil|mil|org|org|edu|edu|int|int)$"
         //var regu = "^(([0-9a-za-z]+)|([0-9a-za-z]+[_.0-9a-za-z-]*))@([a-za-z0-9-]+[.])+([a-za-z]{2}|net|net|com|com|gov|gov|mil|mil|org|org|edu|edu|int|int|name|name)$"
		 //modified by ryan gao 2005-12-16
		 //var regu = "^(([0-9a-za-z]+)|([0-9a-za-z]+[_.0-9a-za-z-]*[0-9a-za-z]+))@([a-za-z0-9-]+[.])+([a-za-z]{2}|net|net|com|com|gov|gov|mil|mil|org|org|edu|edu|int|int|name|name)$";
		 //modified by ryan gao 2005-12-28 电子邮件地址结尾有_(如126)
		 var regu = "^(([0-9a-za-z]+)|([0-9a-za-z]+[_.0-9a-za-z-]*))@([a-za-z0-9-]+[.])+([a-za-z]{2}|net|net|com|com|gov|gov|mil|mil|org|org|edu|edu|int|int|name|name)$";
		 var re = new regexp(regu);
         if (s.search(re) != -1) {
               return true;
         } else {
               window.alert ("please enter a valid email address!")
               return false;
         }
}

function showclick(msg){
	if(confirm(msg)){
		event.returnvalue=true;
	}else{
		event.returnvalue=false;
	}
}

function showsub(ss)
{
ss=document.getelementbyid(ss)
 if (ss.style.display=="none") 
  {ss.style.display="";

}
 else
  {ss.style.display="none";
   }
}

function jtrim(str)
{

        var i = 0;
        var len = str.length;
        if ( str == "" ) return( str );
        j = len -1;
        flagbegin = true;
        flagend = true;
        while (( flagbegin == true) && (i< len))
        {
           if ( str.charat(i) == " " )
                {
                  i=i+1;
                  flagbegin=true;
                }
                else
                {
                        flagbegin=false;
                }
        }

        while  ((flagend== true) && (j>=0))
        {
            if (str.charat(j)==" ")
                {
                        j=j-1;
                        flagend=true;
                }
                else
                {
                        flagend=false;
                }
        }

        if ( i > j ) return ("");

        trimstr = str.substring(i,j+1);
        return trimstr;
}


function isvaliddate( year, month, day )
{
   year  = parseint(year,10);
   month = parseint(month,10);
   day   = parseint(day,10);

   if (( month==4) || (month==6) || (month==9) || (month==11) )
   { if (( day < 1) || (day > 30) )
     { alert( "日期在1 - 30之间" );
       return (false);
     }
   }
   else
   { if ( month!=2 )
     { if ( (day < 1) || (day > 31 ))
       {  alert( "日期在1 - 31之间" );
          return (false);
       }
     }
     else
     { // month == 2
       if ( ( year % 100 ) != 0 && (year % 4 == 0) || ( year % 100 ) == 0 && ( year % 400) == 0 )
       { if ( day > 29 )
         {  alert( "日期在1 - 29之间" );
            return (false);
         }
       }
       else
       { if ( day > 28 )
         { alert( "日期在1 - 28之间" );
           return (false);
         }
       }
     }
   }
 return (true);
}

function isvaliddate_e( year, month, day )
{
   year  = parseint(year,10);
   month = parseint(month,10);
   day   = parseint(day,10);

   if (( month==4) || (month==6) || (month==9) || (month==11) )
   { if (( day < 1) || (day > 30) )
     { alert( "day must between 1 - 30" );
       return (false);
     }
   }
   else
   { if ( month!=2 )
     { if ( (day < 1) || (day > 31 ))
       {  alert( "day must between 1 - 31" );
          return (false);
       }
     }
     else
     { // month == 2
       if ( ( year % 100 ) != 0 && (year % 4 == 0) || ( year % 100 ) == 0 && ( year % 400) == 0 )
       { if ( day > 29 )
         {  alert( "day must between 1 - 29" );
            return (false);
         }
       }
       else
       { if ( day > 28 )
         { alert( "day must between 1 - 28" );
           return (false);
         }
       }
     }
   }
 return (true);
}

function datecompare(yearfrom, monthfrom, yearto, monthto)
{  yearfrom  = parseint(yearfrom,10);
   monthfrom = parseint(monthfrom,10);
   yearto    = parseint(yearto,10);
   monthto   = parseint(monthto,10);

   if (yearfrom > yearto)
     { return false;}
   else
   {  if (yearfrom == yearto)
      {  if (monthfrom > monthto)
            return false;
      }
   }
   return true;
}

function checkall(form) {  
	for (var i=0;i<form.elements.length;i++)  {  
		var e = form.elements[i];  
		if (e.name != 'chkall')  
		e.checked = true // form.chkall.checked;  
	}  
} 
 
function contrasel(form) {
	for (var i=0;i<form.elements.length;i++){
		var e = form.elements[i];
		if (e.name != 'chkall')
		e.checked=!e.checked;
	}
}

function strlength(str){
	return str.replace(/[^\x00-\xff]/gi,'xx').length;
}
	//去掉字符中的空格
	function trim(value) {
	    return value.replace( /^\s*/, "" ).replace( /\s*$/, "" );
	}
	
	//判断是否为空.
	function isnull(value){
		if(trim(value).length == 0){
			return true;
		}else{
			return false;
		}
	}
	//检查email地址是否有效.
	function isemail(mail){
		var reg = /^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/;
  		return  check( reg, trim(mail) );
  	}
  
	//验证是否为整数.
  function isint(value){
  	var reg = /^\d+$/;  	
  	return check(reg,value);
  }
    
  //检查邮政编码是否合法.
  function ispostno(value){
		var reg = /^\d{6}$/;
		return  check( reg, value );
	}
	
	function check( reg, str ){	
		if( reg.test( str ) ){
			return true;
		}			
		return false;
	}
  //验证是否为数字（整数或小数）.
  function isnumber(onum){ 
  if(!onum) return false; 
  var strp=/^\d+(\.\d+)?$/; 
  if(!strp.test(onum)) return false; 
  try{ 
  if(parsefloat(onum)!=onum) return false; 
  } 
  catch(ex) 
  { 
   return false; 
  } 
  return true; 
  }
  
  //刷新验证码函数 add 2008-6-13
function refreshcheckcodeimg(){document.all.checkcode.src='/include/checkcode.asp';}

/////////////////////////////////////////////////////////////////////////图片大小控制函数 start
//图片按比例缩放
var flag=false;
function drawimage(imgd,iwidth,iheight){
	//参数(图片,允许的宽度,允许的高度)
	var image=new image();
	image.src=imgd.src;
	if(image.width>0 && image.height>0){
		flag=true;
		if(image.width/image.height>= iwidth/iheight){
			if(image.width>iwidth){ 
				imgd.width=iwidth;
				imgd.height=(image.height*iwidth)/image.width;
			}else{
				imgd.width=image.width; 
				imgd.height=image.height;
			}
		}else{
			if(image.height>iheight){ 
				imgd.height=iheight;
				imgd.width=(image.width*iheight)/image.height; 
			}else{
				imgd.width=image.width; 
				imgd.height=image.height;
			}
		}
	}
}

function bbimg(o){
	var zoom=parseint(o.style.zoom, 10)||100;zoom+=event.wheeldelta/12;if (zoom>0) o.style.zoom=zoom+'%';
	return false;
}
function imgzoom(img,maxsize){
	var a=new image();
	a.src=img.src
	if(a.width > maxsize * 4)
	{
		img.style.width=maxsize;
	}
	else if(a.width >= maxsize)
	{
		img.style.width=math.round(a.width * math.floor(4 * maxsize / a.width) / 4);
	}
	return false;
}

function imgzoom01(img,maxsize){
	var a=new image();
	a.src=img.src
	if(a.width >= maxsize)
	{
		img.style.width=maxsize;
	}
	return false;
}


//图片自动调整的模式，1为按比例调整 ，2 按大小调整。
var resizemode=1
function imgresize(o){
	 if (resizemode==2 || o.onmousewheel){
	 	if(o.width > 500 ){
				o.style.width='500px';
			}
			if(o.height > 800){
				o.style.height='800px';
			}
		}else{
		var parentnode=o.parentnode.parentnode
		if (parentnode){
		if (o.offsetwidth>=parentnode.offsetwidth) o.style.width='98%';
		}else{
		var parentnode=o.parentnode
		if (parentnode){
			if (o.offsetwidth>=parentnode.offsetwidth) o.style.width='98%';
			}
		}
	}
}
/////////////////////////////////////////////////////////////////////////图片大小控制函数 end



function charcheck(regexpstr)
{
	var inputchar = string.fromcharcode(event.keycode);
	if(regexpstr.test(inputchar))
	{
		return true;
	}
	else
	{
		return false;
	}
}