function change(value){
	if(value==1){
		document.getElementById('ga_navigation').style.display='block';
		document.getElementById('ga_mouillage').style.display='none';
		document.getElementById('ga_interieur').style.display='none';
	}else if(value==2){
		document.getElementById('ga_navigation').style.display='none';
		document.getElementById('ga_mouillage').style.display='block';
		document.getElementById('ga_interieur').style.display='none';
	}else if(value==3){
		document.getElementById('ga_navigation').style.display='none';
		document.getElementById('ga_mouillage').style.display='none';
		document.getElementById('ga_interieur').style.display='block';
	}
}