function is_num(str) {
  if(!str) return false;
  for(var i=0; i<str.length; i++){
    var ch=str.charAt(i);
    if ("0123456789".indexOf(ch) ==-1) return false;
  }
  return true;
}
function is_email (emailStr) {
var checkTLD=1;
var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
var emailPat=/^(.+)@(.+)$/;
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;
}

function is_date (obj) {
 
 //var dateStr=obj.value;
 var dateStr=obj;
 var DateSeparator = /^(\d+)[-\/\.](\d+)[-\/\.](\d{4})$/;
 var matchSep=dateStr.match(DateSeparator);
 var DateRep = RegExp.$1+"-"+RegExp.$2+"-"+RegExp.$3;
 var correct = false;
  
 if (matchSep){
  if ( (DateRep.length < 11) && (DateRep.length > 7) ) 
  {
   j = DateRep.substring(0,2);
   m = DateRep.substring(3,5);
  
   a = DateRep.substring(6,DateRep.length);
   bi = ((parseInt(a) % 4) == 0);
   if ( ( (m == "01") || (m == "03") || (m == "05") || (m == "07") || (m == "08") || (m == "10") || (m == "12") ) && ( (Math.round(j) >= 1) && (Math.round(j) <= 31) ) )
   {
    correct = true;
   }
   else
   {
    if ( ( (m == "04") || (m == "06") || (m == "09") || (m == "11") ) && ( (Math.round(j) >= 1) && (Math.round(j) <= 30) ) ) 
    {
     correct = true;
    }
    else 
    {
     if ((Math.round(j) >= 1) && (Math.round(j) <= 29))
     {
      if (bi) 
      {
       correct = ( ( (Math.round(j) >= 1) && (Math.round(j) <= 29) ) && (m == "02") );
      }
      else
      {
       correct = ( ( (Math.round(j) >= 1) && (Math.round(j) <= 28) ) && (m == "02") );
      }
     }
    }
   }
  }
  if (correct)
  {
   obj.value=DateRep;
  }
 }
 return correct;
} //end function is_date

function is_datetime (obj) {
 var correct=false;
 if ( (obj.length < 20) && (obj.length > 11) )
 {
  ladate = obj.substring(0,10);
  heure = obj.substring(11,13);
  minute = obj.substring(14,16);
  seconde = obj.substring(17,obj.length);
  if (is_date(ladate) && 
   (Math.round(heure) >= 0) && (Math.round(heure) <= 23 ) &&
   (Math.round(minute) >= 0) && (Math.round(minute) <= 59 ) &&
    (Math.round(seconde) >= 0) && (Math.round(seconde) <= 59 ))
      correct=true;
 if (obj.substring(10,11)!=" ") correct=false;
 }
 return correct;
 } // end function is_datetime

//confirmation avant d'envoyer vers une url
function confirm_url(url)
{if (confirm('Vous allez supprimer définitivement cet enregistrement. Voulez vous confirmer?')) window.location = url;}


// fonctions de surlignage par mouseover
var couleur_origine="";
//highlight
function h(obj)
{couleur_origine=obj.bgColor;obj.bgColor='efefff';}
//unhighlight
function uh(obj)
{obj.bgColor=couleur_origine;}

//fonction de selection
function sel(obj,id)
	{
	var	str = parent.location.href;
	if (str.indexOf("?")>0) str = str.substr(0,str.indexOf("?"))
	parent.location = str + "?action=frm&id=" + id;
	}
function sel_a(action, id)
{
	var	str = parent.location.href;
	if (str.indexOf("?")>0) str = str.substr(0,str.indexOf("?"))
	parent.location = str + "?action=" + action + "&id=" + id;
}