/* number utilities */
if(!window.NumUtil)window.NumUtil={}
NumUtil.nvl=function(n,def){return n?n:(def?def:0);}
NumUtil.round=function(n,p){return Math.round(n*Math.pow(10,p))/Math.pow(10,p);}
NumUtil.addCommas=function(n){/* adding commas to a number, and returning a string */
  var x=(n+'').split('.');
  var x1=x[0];
  var x2=x.length>1?'.'+x[1]:'';
  var rgx=/(\d+)(\d{3})/;
  while(rgx.test(x1))x1=x1.replace(rgx, '$1' + ',' + '$2');
  return x1+x2;
}

/* string utilities */
if(!window.StrUtil)window.StrUtil={}
StrUtil.nvl=function(s,def){
  if(s&&s!='null')return s;
  if(def&&def!='null')return def;
  return '';
}
StrUtil.replicate=function(s,n){
  var out='';
  for(var i=0;i<n;i++)out+=s;
  return out;
}
StrUtil.replace=function(s,p1,p2){
  if(!s || !p1)return s;
  var pattern=new RegExp(p1, 'gim');
  return s.replace(pattern,p2);
}
StrUtil.lpad=function(s,len,pad){
  s=''+s;
  if(s.length>len)return s.substring(0,len);
  var n=len-s.length;
  for(var i=0;i<n;i++)s=pad+s;
  return s;
}
StrUtil.rpad=function(s,len,pad){
  s=''+s;
  if(s.length>len)return s.substring(0,len);
  var n=len-s.length;
  for(var i=0;i<n;i++)s+=pad;
  return s;
}
StrUtil.trim=function(s){
  if(!s)return s;
  return s.replace(/^\s+|\s+$/g,'');
}
StrUtil.ltrim=function(s){
  if(!s)return s;
  return s.replace(/^\s+/,'');
}
StrUtil.rtrim=function(s){
  if(!s)return s;
  return s.replace(/\s+$/,'');
}
StrUtil.replaceChars=function(s,cs,def){
  var out='';
  if(s)
    for(var i=0;i<s.length;i++)
      if(cs.indexOf(s.charAt(i))!=-1)out+=def;
      else out+=s.charAt(i);
  return out;
}
StrUtil.startWith=function(s1,s2){ /*check if s1 starts with s2 */
  s1=this.nvl(s1,'');
  s2=this.nvl(s2,'');
  if(s1==s2)return true;
  return s1.length<s2.length?false:s1.substring(0,s2.length)==s2;
}
StrUtil.endWith=function(s1,s2){ /*check if s1 ends with s2 */
  s1=this.nvl(s1,'');
  s2=this.nvl(s2,'');
  if(s1==s2)return true;
  return s1.length<s2.length?false:s1.substring(s1.length-s2.length)==s2;
}
StrUtil.hasWhiteSpace=function(s){
  if(/^[\S]*$/.exec(s))return false;
  return true;
}
StrUtil.initcaps=function(s){/* capitalize the initial character of each word */
  s=s.replace(/\n|(\r\n)/gim,' #!# ');
  s=s.replace(/(\s+)/gim,' ');
  s=s.replace(/(,|;|:|\.)(\w+)/gim,'$1 $2');
  var a=s.split(' ');
  for(var i=0;i<a.length;i++)
    a[i]=a[i].charAt(0).toUpperCase()+a[i].substring(1).toLowerCase();
  s=a.join(' ');
  s=s.replace(/ #!# /gim,'\n');
  return s;
}
StrUtil.lower=function(s){
  s=this.trim(s);
  if(!s)return '';
  return s.toLowerCase();
}
StrUtil.upper=function(s){
  s=this.trim(s);
  if(!s)return '';
  return s.toUpperCase();
}
StrUtil.contain=function(s1,s2){
  if(!s1||!s2)return false;
  var regex=s2.replace(/([.*+?^${}()|[\]\/\\])/g, '\\$1');
  var pattern=new RegExp(regex, 'gi');
  var index=s1.search(pattern);
  return (index!=-1);
}
StrUtil.count=function(s1,s2,i){
  var count=0;
  if(!s1||!s2)return count;
  var s3=DocUtil.encodeRegex(s2);
  if(!s3)return count;
  var modifiers=(i)? 'gim':'gm';
  var regexp=new RegExp(s3,modifiers);
  var array=s1.match(regexp);
  return (array && array.length>0)? array.length:0;
}
/* date utilities */
if(!window.DateUtil)window.DateUtil={}
DateUtil.DATE_DEFAULT_FORMAT='yyyy/mm/dd';
DateUtil.DATE_SHORT_MONTH=['Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec'];
DateUtil.DATE_SHORT_DAY=['Sun','Mon','Tue','Wed','Thu','Fri','Sat'];
DateUtil.DATE_MONTH=['January','February','March','April','May','June','July','August','September','October','November','December'];
DateUtil.DATE_DAY=['Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday'];
DateUtil.DATE_AMPM=['am','pm'];
DateUtil.currYear=function(){
  var out=new Date().getYear();
  if(out<1900)out+=1900;
  return out;
}
DateUtil.minDate=function(d1,d2){
  if(!d1)return d2;
  if(!d2)return d1;
  return d1.getTime()<d2.getTime()?d1:d2;
}
DateUtil.maxDate=function(d1,d2){
  if(!d1)return d2;
  if(!d2)return d1;
  return d1.getTime()>d2.getTime()?d1:d2;
}
DateUtil.timeDiff=function(d1,d2){/* positive result if d1>d2 */
  if(!d1)d1=new Date();
  if(!d2)d2=new Date();
  return d1.getTime()-d2.getTime();
}
DateUtil.dayDiff=function(d1,d2){/* Number of days different between d1 & d2; positive result if d1>d2 */
  if(!d1)d1=new Date();
  if(!d2)d2=new Date();
  var md=this.monthDiff(d1,d2);
  if(md==0) return d1.getDate()-d2.getDate();
  var out=0;
  if(md>0){
    out=this.lastDofm(d2).getDate()-d2.getDate();
    for(var i=0;i<md-1;i++)out+=this.lastDofm(this.addMonths(d2,i+1)).getDate();
    out+=d1.getDate();
  }else{
    out=-(this.lastDofm(d1).getDate()-d1.getDate());
    for(var i=0;i<md-1;i++)out-=this.lastDofm(this.addMonths(d1,i+1)).getDate();
    out-=d2.getDate();
  }
  return out;
}
DateUtil.monthDiff=function(d1,d2){/* Number of months different between d1 & d2; positive result if d1>d2 */
  if(!d1)d1=new Date();
  if(!d2)d2=new Date();
  var yd=d1.getYear()-d2.getYear(),md=d1.getMonth()-d2.getMonth();
  return yd*12+md;
}
DateUtil.isSameMonth=function(d1,d2){
  if(!d1||!d2)return false;
  var dx=new Date(d1.getTime()),dy=new Date(d2.getTime());
  return dx.getYear()==dy.getYear()&&dx.getMonth()==dy.getMonth();
}
DateUtil.addMonths=function(d,n){
  if(!d||n==0)return null;
  var out=this.firstDofm(new Date(d.getTime())),days=d.getDate();
  out.setMonth(out.getMonth()+n);
  if(this.lastDofm(out).getDate()<days)out=this.lastDofm(out);
  else out.setDate(days);
  return out;
}
DateUtil.firstDofm=function(d){/* return the first date of month */
  if(!d)return null;
  var out=new Date(d.getTime());
  out.setDate(1);
  return out;
}
DateUtil.lastDofm=function(d){/* return the last date of month */
  if(!d)return null;
  var out=new Date(d.getTime());
  out.setDate(1);
  out.setMonth(out.getMonth()+1);
  out.setDate(0);
  return out;
}
DateUtil.truncDate=function(d){
  if(!d)return null;
  var out=new Date(d.getTime());
  out.setHours(0);
  out.setMinutes(0);
  out.setSeconds(0);
  out.setMilliseconds(0);
  return out;
}
DateUtil.dtos=function(d,fmt){/* convert the date to string to specified date format */
  if(!d)return '';
  var rep=StrUtil.replace;
  var out=StrUtil.nvl(fmt,this.DATE_DEFAULT_FORMAT).toLowerCase();
  out=rep(out,'yyyy',d.getYear()+(document.all?0:1900));
  out=rep(out,'mm',StrUtil.lpad(d.getMonth()+1,2,'0'));
  out=rep(out,'month',this.DATE_MONTH[d.getMonth()]);
  out=rep(out,'mon',this.DATE_SHORT_MONTH[d.getMonth()]);
  out=rep(out,'dd',StrUtil.lpad(d.getDate(),2,'0'));
  out=rep(out,'dayofweek',this.DATE_DAY[d.getDay()]);
  out=rep(out,'dow',this.DATE_SHORT_DAY[d.getDay()]);
  out=rep(out,'hh24',StrUtil.lpad(d.getHours(),2,'0'));
  out=rep(out,'hh',StrUtil.lpad(d.getHours()%12,2,'0'));
  out=rep(out,'ampm',this.DATE_AMPM[Math.floor(d.getHours()/12)]);
  out=rep(out,'mi',StrUtil.lpad(d.getMinutes(),2,'0'));
  out=rep(out,'ss',StrUtil.lpad(d.getSeconds(),2,'0'));
  if(out.indexOf('yy')){
    var yr=d.getYear()+(document.all?0:1900);
    yr=''+yr;
    out=rep(out,'yy',yr.substring(2));
  }
  return out;
}
DateUtil.stod=function(s,fmt){/* convert the string to date w/- specified date format */
  if(!s)return null;
  fmt=StrUtil.nvl(fmt,this.DATE_DEFAULT_FORMAT).toLowerCase();
  var out=new Date(),p=-1;
  try{
    var hh24=fmt.indexOf('hh24'),ampm=fmt.indexOf('ampm');
    if(hh24!=-1&&ampm!=-1) throw "invalid date string";
    var m=fmt.indexOf('mm'),n=fmt.indexOf('dd'),y=fmt.indexOf('yyyy');
    var h=fmt.indexOf('hh'),u=fmt.indexOf('mi'),t=fmt.indexOf('ss');
    var ss=function(s,a,b){return s.substring(a,b);}
    if(hh24!=-1){
      if(y!=-1)out.setFullYear(y<hh24?ss(s,y,y+4):ss(s,y-2,y+2));
      if(m!=-1)out.setMonth(m<hh24?ss(s,m,m+2)-1:ss(s,m-2,m)-1);
      if(n!=-1)out.setDate(n<hh24?ss(s,n,n+2):ss(s,n-2,n));
      if(u!=-1)out.setMinutes(u<hh24?ss(s,u,u+2):ss(s,u-2,u));
      if(t!=-1)out.setSeconds(t<hh24?ss(s,t,t+2):ss(s,t-2,t));
      out.setHours(ss(s,hh24,hh24+2));
    }else if(ampm!=-1){
      if(y!=-1)out.setFullYear(y<ampm?ss(s,y,y+4):ss(s,y-2,y+2));
      if(m!=-1)out.setMonth(m<ampm?ss(s,m,m+2)-1:ss(s,m-2,m)-1);
      if(n!=-1)out.setDate(n<ampm?ss(s,n,n+2):ss(s,n-2,n));
      if(u!=-1)out.setMinutes(u<ampm?ss(s,u,u+2):ss(s,u-2,u));
      if(t!=-1)out.setSeconds(t<ampm?ss(s,t,t+2):ss(s,t-2,t));
      if(h!=-1){
        var hr=parseInt(h<ampm?ss(s,h,h+2):ss(s,h-2,h));
        hr=hr%12;
        hr+=ss(s,ampm,ampm+2)=='pm'?12:0;
        out.setHours(hr);
      }
    }else{
      if(y!=-1)out.setFullYear(ss(s,y,y+4));
      if(m!=-1)out.setMonth(ss(s,m,m+2)-1);
      if(n!=-1)out.setDate(ss(s,n,n+2));
      if(u!=-1)out.setMinutes(ss(s,u,u+2));
      if(t!=-1)out.setSeconds(ss(s,t,t+2));
    }
    return out;
  }catch(e){
    alert('Failed to convert date ['+s+'] to format ['+fmt+']');
    return null;
  }
}

/* array utilities */
if(!window.AryUtil)window.AryUtil={}
AryUtil.shallowClone=function(a) {
  var out=new Array();
  if(a&&a.length>0)for(var i in a)out.push(a[i]);
  return out;
}
AryUtil.splitAsArray=function(s,sep) {
  var out=new Array();
  if(s&&StrUtil.trim(s).length>0) {
    if(sep&&sep.length>0) {
      sep=sep.charAt(0);
      var sary=s.split(sep);
      if(sary&&sary.length>0)out=this.shallowClone(sary);
    }else out[0]=s;
  }
  return out;
}
AryUtil.contain=function(a,o){
  if(a&&a.length>0)for(var i in a)if(a[i]==o)return i;
  return -1;
}
AryUtil.printArray=function(a){
  if(a&&a.length>0){
    var msg='';
    for(var i=0;i<a.length;i++)msg+='\n'+(i+1)+'. '+a[i];
    alert('a['+a.length+']:'+msg);
  }else alert('Array is null or empty!');
}
AryUtil.isEmpty=function(a){
  return !a||a.length==0;
}
window.ArrayUtil=AryUtil;