function openCloseBlock(id,mode)
{
	if(document.getElementById) {
		element = document.getElementById(id);
	} else if(document.all) {
		element = document.all[id];
	} else return;
	if(element.style) {
		if(mode == 0) {
			if(element.style.display == 'block' ) {
				element.style.display = 'none';
			} else {
				element.style.display = 'block';
			}
		} else if(mode == 1) {
			element.style.display = 'block';
		} else if(mode == -1) {
			element.style.display = 'none';
		}
	}
}
function initOpenCloseBlock(idcontrol, controleur) {
	if(document.getElementById) {
		var objControleur = document.getElementById(controleur);
		var element = document.getElementById(idcontrol);
	} else if(document.all) {
		var objControleur = document.all[controleur];
		var element = document.all[idcontrol];
	} else return;
	if (objControleur.checked==true) {
		element.style.display ='block';
		objControleur.value = 1;
	} else {
		element.style.display = 'none';
		objControleur.value = 0;
	}
}