function clearDefaultValue(obj, defaultValue, pass) {
	if (obj.value == defaultValue)
		obj.value = '';
	if (pass)
		obj.type = "password";
	return;
}

function checkDefaultValue(obj, defaultValue, pass) {
	if (obj.value == '') {
		obj.value = defaultValue;
		if (pass)
			obj.type = "text";
	}
	return;
}

function hideDiv(id) {
	document.getElementById(id).style.display="none";
}
function showDiv(id) {
	document.getElementById(id).style.display="block";
}

function NavigateThrough (event)
{
	if (!document.getElementById) return;
	if (window.event) event = window.event;
	if (event.ctrlKey)
	{
		var link = null;
		var href = null;
		switch (event.keyCode ? event.keyCode : event.which ? event.which : null)
		{
			case 0x25:
				link = document.getElementById ('PrevLink');
				break;
			case 0x27:
				link = document.getElementById ('NextLink');
				break;
			case 0x26:
				link = document.getElementById ('UpLink');
				break;
			case 0x28:
				link = document.getElementById ('DownLink');
				break;
			case 0x24:
				href = '/';
				break;
		}

		if (link && link.href) document.location = link.href;
		if (href) document.location = href;
	}			
}
document.onkeydown = NavigateThrough;

function updateValue(objId, value) {
	obj = document.getElementById(objId);
	if (obj != null && obj != 'undefined') {
		obj.innerHTML = value;
	}
}