body{
text-align: center
 /* Pour centrer avec IE*/
}
#global {
	position: relative; /* on positionne le conteneur */
	margin-left: auto;
	margin-right: auto;
	width: 1000px;
	z-index:1;
	
     }


#centrage {
      position: absolute; /* on imbrique la div centrage dans le conteneur */
      left: 50%;
      width:1000px;
	  height: 600px;
	  margin-left: -500px;
	  margin-top: 0px; 
	  top: 0px;
	  z-index:1;
}
/*#barre_nav {
      position: absolute;
      left: 0px;
      width:988px;
	  height: 62px;
	  top: 0px;}*/
 .tab_menu_haut {
	  background-image:url(../images/fond_menu_h.gif); background-repeat:no-repeat; 
	  }
	  
#fond_carre_page{
       background-image:url(../images/fond_carre_page.gif); background-repeat:no-repeat; width:1000px; height:500px;  top:300px; z-index:1;
	   }