showhide.js

这是linux下ssl vpn的实现程序

if(document.getElementById) { // IE 5 and up, NS 6 and up
        var upLevel = true;
        }
else if(document.layers) { // Netscape 4
        var ns4 = true;
        }
else if(document.all) { // IE 4
        var ie4 = true;
        }

function showObject(obj) {
	if (ns4) {
		obj.visibility = "show";
	}
	else if (ie4 || upLevel) {
    	obj.style.visibility = "visible";
	}
}

function hideObject(obj) {
    if (ns4) {
		obj.visibility = "hide";
	}
    if (ie4 || upLevel) {
    	obj.style.visibility = "hidden";
	}
}

function showHide (id)  
 	var style = document.getElementById(id).style
 	if (style.visibility == "hidden")
  		style.visibility = "visible";
 	else  
  		style.visibility = "hidden";
}