var ns4 = (document.layers)? true:false
var ie4 = (document.all)? true:false
var iwpSK = null
function OpenWindow(url,parms)  {
	if (iwpSK != null){
		if(ie4) iwpSK.close()
		iwpSK = null
		}
	iwpSK = window.open(url,"iwpSK",parms)
	iwpSK.focus();
	}
function PopGetSKLogin()  {
	var loginurlSK = srcAddr & "/PopAuth.asp"
	OpenWindow(loginurlSK,"resizable=no,scrollbars=no,width=200,height=100")
	}
function loginSK()  {
	var frm = document.skLoginForm
	if( checkIt("Username",frm.skUsername,5,20,false) )  {
		alert("Please enter a username between 5 and 20 characters in length")
		return false
		}
	if( checkIt("Password",frm.skPassword,5,20,true) )  {
		alert("Please enter a password between 5 and 20 characters in length")
		return false
		}
	return true
	}


function isEmpty(str)  {
	if( str == null || str == "" )
		return true
	return false
	}
function checkIt(what,where,minlen,maxlen,notify)  {
	tmp = where.value
	if( isEmpty(tmp) || tmp.length < minlen || tmp.length > maxlen )  {
		if( notify ) alert("Invalid " + what)
		where.focus()
		where.select()
		return true
		}
	return false
	}
function trim() {
    //Match spaces at beginning and end of text and replace with empty strings. Use is text.trim()
    return this.replace(/^\s+/,'').replace(/\s+$/,'');
    }