function open_s_layer(id) { 
	 document.getElementById(id).style.display='block';
}	
function close_s_layer(id) { 
	 document.getElementById(id).style.display='none';
}	
function open_layer(id) { 

	if(document.getElementById(id).style.display=='none'){
	 document.getElementById(id).style.display='block';
		}else{
	document.getElementById(id).style.display='none';
	}
}	
 <!--
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;
}

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];}}
}

function MM_findObj(n, d) { //v4.01
  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);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

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_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function affiche_error(id){document.getElementById(id).className='error';}
function enleve_error(id){document.getElementById(id).className='correct';}

function MM_validateForm() { //v4.0
  var id,i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
  for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=MM_findObj(args[i]);
    if (val) {id=val.id; nm=val.name;  if ((val=val.value)!="") {enleve_error(id);
      if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
        if (p<1 || p==(val.length-1)){ errors+='- '+nm+' n\'est pas correct.\n';affiche_error(id); }else{enleve_error(id);}
      } else if (test!='R') { num = parseFloat(val);
        if (isNaN(val)){ errors+='- '+nm+' doit contenir un entier.\n';;affiche_error(id); }else{enleve_error(id);}
        if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
          min=test.substring(8,p); max=test.substring(p+1);
          if (num<min || max<num){ errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';;affiche_error(id); }else{enleve_error(id);}
    } } } else if (test.charAt(0) == 'R' && val==""){ errors += '- '+nm+' est obligatoire.\n'; affiche_error(id);} else{enleve_error(id);}}
  //} if (errors) alert('The following error(s) occurred:\n'+errors);
  } if (errors) alert('Veuillez remplir correctement tous les champs obligatoires.');
  document.MM_returnValue = (errors == '');
}