function login_user()
{
	if (document.getElementById("username").value == "")
	{
		alert("please enter username...");
		document.getElementById("username").focus();
		return;
	}
	
	if (document.getElementById("password").value == "")
	{
		alert("please enter password...");
		document.getElementById("password").focus();
		return;
	}
	
	if (document.getElementById("username").value == "smileys" && document.getElementById("password").value == "islands")
	{
		window.location = ("admin_login.asp?smileyin=true")
		return;
	}
	else
	{
		alert("incorrect credientials...");
		return;
	}
}

function emailCheck (emailStr)
{
	if (emailStr==null)
	{
		return false
	}

	if (emailStr=="")
	{
		return false
	}

	var emailPat=/^(.+)@(.+)$/
	var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
	var validChars="\[^\\s" + specialChars + "\]"
	var quotedUser="(\"[^\"]*\")"
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
	var atom=validChars + '+'
	var word="(" + atom + "|" + quotedUser + ")"
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")
	var matchArray=emailStr.match(emailPat)
	
	if (matchArray==null)
	{
		return false
	}

	var user=matchArray[1]
	var domain=matchArray[2]

	if (user.match(userPat)==null)
	{
    	return false
	}

	var IPArray=domain.match(ipDomainPat)

	if (IPArray!=null)
	{
		for (var i=1;i<=4;i++)
		{
	    		if (IPArray[i]>255)
				{
					return false
	    		}
    		}
    		return true
	}

	var domainArray=domain.match(domainPat)

	if (domainArray==null)
	{
    	return false
	}

	var atomPat=new RegExp(atom,"g")
	var domArr=domain.match(atomPat)
	var len=domArr.length

	if (domArr[domArr.length-1].length<2 || domArr[domArr.length-1].length>3)
	{
   		return false
	}

	if (len<2)
	{
   		return false
	}

	return true;
}