function visibleDiv(id,f){
	var bw=new checkBrowser();
	var aff=(f==0)?"'hidden'":"'visible'";
	if(bw.ns4){
		eval("document.layers." + id + ".style.visibility=" + aff);
	} 
	else if(bw.nn){
		eval("document.getElementById('" + id + "').style.visibility=" + aff);
	} 
	else if(bw.ie) {
		eval("document.all['" + id + "'].style.visibility=" + aff);
	}
}
function displayDiv(id,f){
	var bw=new checkBrowser();
	var aff=(f==0)?"'none'":"''";
	if(bw.ns4){
		eval("document.layers." + id + ".style.display=" + aff);
	} 
	else if(bw.nn){
		eval("document.getElementById('" + id + "').style.display=" + aff);
	} 
	else if(bw.ie) {
		eval("document.all['" + id + "'].style.display=" + aff);
	}
}

function verifDisplay(id){
	var bw=new checkBrowser();
	var strdisplay;
	if(bw.ns4){
		strdisplay=eval("document.layers." + id + ".style.display");
	} 
	else if(bw.nn){
		strdisplay=eval("document.getElementById('" + id + "').style.display");
	} 
	else if(bw.ie) {
		strdisplay=eval("document.all['" + id + "'].style.display");
	}
	return strdisplay;
}