function resize(){
//alert("toto");
var O_Srce = document.getElementById( 'centre');

if(O_Srce.offsetHeight<1000){
O_Srce.style.height="1000px";
}


var O_Dest = document.getElementById( 'mid');
//O_Dest.style.width  = parseInt( O_Srce.offsetWidth) +'px';


O_Dest.style.height = parseInt( O_Srce.offsetHeight) +'px';
}