function tabOver(tab)
{
	if (tab.className == 'selected') return;
	tab.style.backgroundImage = 'url(elements/tabOver.gif)';
	tab.rows[1].cells[0].style.color = '#800000';
}

function tabOut(tab)
{
	if (tab.className == 'selected') return;
	tab.style.backgroundImage = 'url(elements/tabBack.gif)';
	tab.rows[1].cells[0].style.color = '#000000';
}

function tabClick(tab)
{
	if (tab.className == 'selected') return;
	var text = tab.rows[1].cells[1].innerHTML;
	if (text == 'Welcome')    document.location.href = 'default.asp';
	if (text == 'Services')   document.location.href = 'services.asp';
	if (text == 'Specials')   document.location.href = 'specials.asp';
	if (text == 'Equipment')  document.location.href = 'equipment.asp';
	if (text == 'Photos')     document.location.href = 'photos.asp';
	if (text == 'Contact')    document.location.href = 'contact.asp';
	if (text == 'About Us')   document.location.href = 'about.asp';
}

function trim(s)
{
	return s.replace(/^\s*|\s*$/g,"");
}

function disableRightClick()
{
	document.oncontextmenu=new Function ("return false");
	document.onselectstart=new Function ("return false");
}

function createCookie(name,value,days)
{
	if (days)
	{
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name)
{
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++)
	{
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name)
{
	createCookie(name,"",-1);
}

function validEmail(email,showMsg)
{
	var val = trim(email);

	if (0 == val.length) return true;
	
	if (0 <= val.indexOf(' '))
	{
		if (showMsg) alert("You can't have spaces in an email address.\n\nTry again --  name@domain.extension");
		return false;
	}
	
	var badAt   = (1 > val.indexOf('@'));
	var badDot  = (3 > val.indexOf('.'));
	var badSeq  = (val.indexOf('.') < val.indexOf('@'));
	var badAts  = (val.indexOf('@') != val.lastIndexOf('@'));
	var badEnd  = (val.indexOf('.') == (val.length - 1));

	if (badAt || badDot || badSeq || badAts || badEnd)
	{
		if (showMsg) alert("That email address is not properfly formed.\n\nTry again --  name@domain.extension");
		return false;
	}

	return true;
}

function cleanupSpacing(id)
{
	try
	{
		var val = trim(document.getElementById(id).value);
		document.getElementById(id).value = val;
	}
	catch(e)
	{
		alert("Can't find document object'" + id + "'");
	}
}