// JavaScript Document
function dyndiv(){
    var hcenter = document.getElementById('center').offsetHeight;
    var hconteneur = document.getElementById('conteneur').offsetHeight;
    if(hconteneur<hcenter){
		
        var hauteur = hcenter-339; //314
		var h = hauteur+'px';
		var id = 'main';
		
		if(document.getElementById){
		document.getElementById(id).style.height=h;
		}
		else if(document.all){
			document.all[id].style.height=h;
		}
		else if(document.layers){
			document.layers[id].height=h;
		}
    }
}