// ********************************************************************** //
//                 Ouverture d'une fenêtre centrée ou pas	
// ********************************************************************** //

var win1=null;
function openfenetre(mypage,myname,w,h,scroll,resizable,pos){
if(pos=="random"){LeftPosition=(screen.width)?Math.floor(Math.random()*(screen.width-w)):100;TopPosition=(screen.height)?Math.floor(Math.random()*((screen.height-h)-75)):100;}
if(pos=="center"){LeftPosition=(screen.width)?(screen.width-w)/2:100;TopPosition=(screen.height)?(screen.height-h)/2:100;}
else if((pos!="center" && pos!="random") || pos==null){LeftPosition=0;TopPosition=20}
settings='width='+w+',height='+h+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',location=no,directories=no,status=no,menubar=no,toolbar=no,resizable='+resizable+'';
win1=window.open(mypage,myname,settings);
win1.focus(myname);
}
function is_email(email)
{
     var reg = /^[a-zA-Z0-9._-]+@[a-zA-Z0-9._-]{2,}[.][a-zA-Z0-9]{2,4}$/
     var reg2 = /[.@]{2,}/
     return ((reg.exec(email)!=null) && (reg2.exec(email)==null))
}