function trim(aStr){return aStr.replace(/^\s{1,}/,"").replace(/\s{1,}$/,"")}
function validateNumber(val,min,max){
if(isNaN(val)) return false;
if(min&&val<min) return false;
if(max&&val>max) return false;
return true}
function dateComponents(dateStr,format){
var results=new Array();var datePat=/^(\d{1,2})(\/|-)(\d{1,2})\2(\d{2}|\d{4})$/;var matchArray=dateStr.match(datePat);
if(matchArray==null){return null}
matchArray[4]=(matchArray[4].length==2)? '19'+matchArray[4]:matchArray[4];
if(format.charAt(0)=="d"){
results[0]=matchArray[1];results[1]=matchArray[3]}else{ 
results[1]=matchArray[1];results[0]=matchArray[3]}
results[2]=matchArray[4];return results}
function valiDate(obj,min,max,format){dateBits=dateComponents(obj.value, format);
if(dateBits==null) return false;
day=dateBits[0];month=dateBits[1];year=dateBits[2];
if((month<1||month>12)||(day<1||day>31)){return false} 
if((month==4||month==6||month==9||month==11) && day==31){return false}
if(month==2){
var isleap=(year%4==0&&(year%100!=0||year%400==0)); 
if(day>29||(day==29&&!isleap)){return false}} 
var theDate=new Date(dateBits[2],parseInt(dateBits[1])-1,dateBits[0]);
if(min){minBits=dateComponents(min,format);
var minDate=new Date(minBits[2], parseInt(minBits[1])-1,minBits[0]);
if(minDate.getTime()>theDate.getTime()) return false} 
if(max){maxBits=dateComponents(max,format);
var maxDate=new Date(maxBits[2],parseInt(maxBits[1])-1,maxBits[0]);
if(theDate.getTime()>maxDate.getTime()) return false}
return true}
function validateEmail(obj){var emailStr=obj.value;
var reg1=/(@.*@)|(\.\.)|(@\.)|(\.@)|(^\.)/;var reg2=/^.+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$/;
if(!reg1.test(emailStr)&&reg2.test(emailStr)){return true}else{return false}}
function locateFileUpload(f){for(var i=0;i<f.elements.length;i++)
if(f.elements[i].type=='file'){return f.elements[i]}}
function validateFileType(obj,fTyp){
dots=obj.value.split(".");fType="."+dots[dots.length-1];
if(fTyp!=null&&fTyp.indexOf(fType)==-1) return false;
return true}
function validateFileLimit(obj,cur,max){
if(cur>=max) return false;
return true}
function OnFailure(obj,lbl,msg){var msgs=new Array();
msgs["text"]=msgs["select-one"]=msgs["select-multiple"]=msgs["checkbox"]=msgs["radio"]=
" 是必填欄位喔～ \n請您務必填寫\n謝謝！";
msgs["textarea"]=" 是空白的耶～ \n灌水一下吧\n謝謝！";
msgs["file"]=" 還沒有上傳喔～\n請您再次確認一下\n謝謝";
msgs["fileType"]=" 不是正確的檔案格式.\n請您確認後再重試一次\n謝謝！";
msgs["fileLimit"]=" is a limited file upload. \n\nPlease reduce number of attachment(s) first.";
msgs["number"]=" 是僅能輸入阿拉伯數字的欄位\n請重新輸入一次";
msgs["date"]=" 是日期欄位\n\n請輸入正確的日期";
msgs["email"]=" 是不正確的電子郵件喔～\n請您確認一下重新填寫～謝謝！";
if(msg[1]||msg[2]){
if(msg[1]&&msg[2]){
term=(msg[0]=="date" )? " ("+msg[3]+")" : "";
alert(lbl+msgs[msg[0]]+term+" between "+msg[1]+" and "+msg[2]);
}else if(msg[1]){
term=(msg[0]=="number") ? " greater than ":" ("+msg[3]+") after ";
alert(lbl+msgs[msg[0]]+term+msg[1]);
}else{
term=(msg[0]=="number")? " less than ":" (" + msg[3] + ") before ";
alert(lbl+msgs[msg[0]]+term+msg[2])}}else{alert(lbl+msgs[msg[0]])}
obj.focus();return false}
function isSomethingSelected(obj){for(var r=0;r<obj.length;r++){if(obj[r].checked) return true}}
function validateRequiredFields(f,a){
for (var i=0;i<a.length;i++){e=a[i][0];
switch (e.type){
case "text":
if(trim(e.value)=="") return OnFailure(e,a[i][1],["text"]);
if(a[i][2]){
switch (a[i][2][0]){
case "number":
if(!validateNumber(e.value,a[i][2][1],a[i][2][2])) return OnFailure(e,a[i][1],["number",a[i][2][1],a[i][2][2]]);
break
case "date":
if(!valiDate(e,a[i][2][1],a[i][2][2],a[i][2][3])) return OnFailure(e,a[i][1],["date",a[i][2][1],a[i][2][2],a[i][2][3]]);
break
case "email":
if(!validateEmail(e)) return OnFailure(e,a[i][1],["email"]);
break
default:
break
}}
break
case "file":
if(a[i][2][1]==0&&trim(e.value)=="" ) return OnFailure(e,a[i][1],["file"]);
if(trim(e.value)!=""){
if(a[i][2][0]!=null&&validateFileType(e,a[i][2][0])==false) return OnFailure(e,a[i][1],["fileType"]);
if(a[i][2][2]!=null&&validateFileLimit(e,a[i][2][1],a[i][2][2])==false) return OnFailure(e,a[i][1],["fileLimit"]);
}
break
case "textarea":
if(trim(e.value)=="") return OnFailure(e,a[i][1],["textarea"]);
break
case "select-one":
if(e.selectedIndex==0) return OnFailure(e,a[i][1],["select-one"]);
break
case "select-multiple":
if(e.selectedIndex==-1) return OnFailure(e,a[i][1],["select-multiple"]);
break
default:
 if(!e[0]){
switch (e.type){
case "checkbox":
if(!e.checked)  return OnFailure(e,a[i][1],["checkbox"]);
break
case "radio":
if(!e.checked)  return OnFailure(e,a[i][1],["radio"]);
break
default:
break}
}else{
switch (e[0].type){
case "checkbox":
if(!isSomethingSelected(e))  return OnFailure(e[0],a[i][1],["checkbox"]);
break
case "radio":
if(!isSomethingSelected(e))  return OnFailure(e[0],a[i][1],["radio"]);
break
default:
break
}}break}}return true}