function openPopUp(url,w,h)
{		
	//  w  = width ;  
	//  h  = height ;
	postop 	= (screen.height-h)/2 ;
	posleft = (screen.width-w)/2 ;
	param = 'top='+postop+',left='+posleft+',width='+w+',height='+h+',menubar=no,location=no,toolbar=no,scrollbars=no,resizable=yes'
	win2=window.open(url,'',param ); 
	
	
}
function callPopUp (src, winName,w,h) {	
	var returnWin="";
	var browserName=navigator.appName;
	var os=navigator.platform;
	var version = parseFloat(navigator.appVersion);						
	if (browserName.indexOf("Netscape")!=-1 && version>=4.0 && os.indexOf("Mac")!=-1)
	 {
		 var t= (window.screen.availHeight-h)/2 ;
		 var l= (window.screen.availWidth-w)/2 ;
		 return window.open(src,winName,'titlebar=no,top='+t+',left='+l+',width=' + w+',height='+h+',screenX=0,screenY=0,resizable=yes');
	 }
	else if (browserName.indexOf("Microsoft Internet Explorer")!=-1 && os.indexOf("Mac")!=-1)
	 {
		 var t= (window.screen.availHeight-h)/2 ;
		 var l= (window.screen.availWidth-w)/2 ;
		 return window.open(src,winName,'titlebar=no,top='+t+',left='+l+',width=' + w+',height='+h+',screenX=0,screenY=0,resizable=yes');
	 }
	else if (browserName.indexOf("Netscape")!=-1 && os.indexOf("Mac")!=-1)
	 {
		return window.open(src,winName,'width='+w+',height='+h+',resizable=yes');
	 }
	else if (browserName.indexOf("Microsoft Internet Explorer")!=-1 && os.indexOf("Win")!=-1)
	 {
		 var t= (window.screen.availHeight-h)/2 ;
		 var l= (window.screen.availWidth-w)/2 ;
		 var win = window.open(src,winName,'titlebar=0,toolbar=0,location=0,directories=0,status=0,menubar=0,top='+t+',left='+l+',width=' + w+',height='+h+',screenX=0,screenY=0,resizable=yes')
			 win.resizeTo(w,h);
		returnWin=win;
		return returnWin;
	 }			
	else if (browserName.indexOf("Netscape")!=-1 && os.indexOf("Win")!=-1)
	 {	
		var t= (screen.height-h)/2 ;
		var l= (screen.width-w)/2 ;	
		 return window.open(src,winName,'width='+w+',height='+h+',top='+t+',left='+l+',resizable=yes');						
		 win2=window.open(url,'',param ); 
		 returnWin=win2;
	 }
	else
	 {
		return window.open(src,winName);
	 }
}

function checkForm(form)
{
 var email = new String(document[form].email.value);
 if(email == "")
 {
  alert("Vous avez oublié d'enter votre e-mail");
  return false;
 }

 arrayofchars = CHARS.split(",");

 for(i=0;i<email.length;i++)
 {
  ok = 0;
  for(j=0;j<arrayofchars.length;j++)
   {
    if(email.charAt(i) == arrayofchars[j])
    {
     ok = 1;
     break;
    }
   }
  if(ok == 0)
   {
     alert("N'utilisez pas de caractères speciaux ni d'espace dans votre e-mail");
     return false;
   }
 }

 

 var saisie = email.toLowerCase() ;
  
  var p = saisie.indexOf("@");
 
 if ( (p == -1 ) || (p == 0) || (p == saisie.length - 1 )  )  
 {
 	alert ("votre email est incorrect" );
	return false;
 }
 

 return true;

}

function envoyer_inscrip()
{
 var pseudo_test = new String(document.inscrip.pseudo.value);
 if(pseudo_test == "")
 {
  alert("Vous avez oublié votre d'enter votre e-mail");
  return false;
 }

 if(pseudo_test.length > 30)
 {
  alert("votre e-mail doit faire moins de 30 caractères");
  return false;
 }
 
 arrayofchars = CHARS.split(",");

 for(i=0;i<pseudo_test.length;i++)
 {
  ok = 0;
  for(j=0;j<arrayofchars.length;j++)
   {
    if(pseudo_test.charAt(i) == arrayofchars[j])
    {
     ok = 1;
     break;
    }
   }
  if(ok == 0)
   {
     alert("N'utilisez pas de caractères speciaux ni d'espace dans votre e-mail");
     return false;
   }
 }

 var saisie = pseudo_test.toLowerCase() ;
  
  var p = saisie.indexOf("@");
 
 if ( (p == -1 ) || (p == 0) || (p == saisie.length - 1 )  )  
 {
 	alert ("votre email est incorrect" );
	return false;
 }
 
 
 
 if(document.inscrip.motpasse.value == "")
 {
  alert("Vous avez oublié d'entrer votre Mot de passe");
  return false;
 }

  
 if(document.inscrip.motpasse.value !== document.inscrip.motpasse2.value)
 {
  alert("Vous avez tapé deux mots de passe différents");
  return false;
 }
 

 return true;

}



function swap (objet,img) {
     	document.images[objet].src=img ;
};
function rollok () {
     	noMedium = false ;
};
function swapb (objet,img) {
      img += ".jpg" ; 
      img = './yamuri/images/big/' + img ;
      swap(objet,img) ;
      noMedium = true ;
};
function swapm (objet,img) {
      //alert(noMedium) ;
      if (noMedium == true) return ;
      img += ".jpg" ; 
      img = './yamuri/images/medium/' + img ;
      swap(objet,img) ; 
};


<!--hide this script from non-javascript-enabled browsers

function MM_findObj(n, d) { //v3.0
  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); return x;
}
/* Functions that swaps images. */
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 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;
}

/* Functions that handle preload. */
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];}}
}




/* Basic Browser detect */
function browserIs(str) {
	return (navigator.userAgent.toLowerCase().indexOf(str) + 1 );	
}

//// Main ////
var Id_inscrire = 0;
var verif = 0;
var CHARS = "a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z,0,1,2,3,4,5,6,7,8,9,_,@,-,.";
var noMedium = false ;