function ouvrir(i) {
var lg=530;
var ht=450;
var left=(screen.width-lg)/2;
var top=(screen.height-ht)/2; 

switch(i) {
	case "1" : ch = "edito.php"; break;
	case "2" : ch = "contact.php"; break;
	case "3" : ch = "mentions.php"; break;
}
window.open(ch,"","top="+top+",left="+left+",width="+lg+",height="+ht+",menubar=no,scrollbars=yes,statusbar=no"); 

}


function ouvrir_detail(id_elem) {
var lg=530;
var ht=450;
var left=(screen.width-lg)/2;
var top=(screen.height-ht)/2; 
ch = "detail_elem.php?id_elem=" + id_elem ;

window.open(ch,"","top="+top+",left="+left+",width="+lg+",height="+ht+",menubar=no,scrollbars=yes,statusbar=no"); 

}