function leng(l){
    if(l =='en' || l =='tc' || l == 'sc'){
        if(document.location.href.indexOf('?')<0)
            document.location.href = document.location.href+'?l='+l;
        else{
            if(document.location.href.indexOf('l=')<0)
                document.location.href = document.location.href+'&l='+l;
            else{
                var temp = document.createTextNode(document.location.href);
                document.location.href = temp.substringData(0,document.location.href.indexOf('l='))+'l='+l;
            }
        }
    }
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
function chkEmpty(obj,nextObj, msg){
    if(obj.value != null && obj.value != ""){
        if(nextObj != null){
            nextObj.focus();
        }
        return false;
    }else{
        //alert(msg);
        obj.focus();
        return true;
    }
}
function emailCheck(emailStr) {
    var checkTLD=1;
    var knownDomsPat=/^(hk|com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum|ca|us)$/;
    var emailPat=/^(.+)@(.+)$/;
    var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]";
    var validChars="\[^\\s" + specialChars + "\]";
    var quotedUser="(\"[^\"]*\")";
    var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
    var atom=validChars + '+';
    var word="(" + atom + "|" + quotedUser + ")";
    var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
    var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
    var matchArray=emailStr.match(emailPat);
    if (matchArray==null) {
        return false;
    }
    var user=matchArray[1];
    var domain=matchArray[2];
    for (i=0; i<user.length; i++) {
        if (user.charCodeAt(i)>127) {
            return false;
       }
    }
    for (i=0; i<domain.length; i++) {
        if (domain.charCodeAt(i)>127) {
            return false;
       }
    }
    if (user.match(userPat)==null) {
        return false;
    }
    var IPArray=domain.match(ipDomainPat);
    if (IPArray!=null) {
        for (var i=1;i<=4;i++) {
            if (IPArray[i]>255) {
                return false;
            }
        }
        return true;
    }
    var atomPat=new RegExp("^" + atom + "$");
    var domArr=domain.split(".");
    var len=domArr.length;
    for (i=0;i<len;i++) {
        if (domArr[i].search(atomPat)==-1) {
            return false;
        }
    }
    if (checkTLD && domArr[domArr.length-1].length!=2 &&
        domArr[domArr.length-1].search(knownDomsPat)==-1) {
        return false;
    }
    if (len<2) {
        return false;
    }
    return true;
}