/**********************************************************************************/
function replace(s, t, u) {
  
   //  Replace a token in a string
   //    s  string to be processed
   //    t  token to be found and removed
   //    u  token to be inserted
   //  returns new String
  
   i = s.indexOf(t);
   r = "";
   if (i == -1) return s;
   r += s.substring(0,i) + u;
   if ( i + t.length < s.length)
     r += replace(s.substring(i + t.length, s.length), t, u);
   return r;
   }
/**********************************************************************************/

//---------------------------------------------------------------------------
function handleLogin(minlength, maxlength, casesensitive, mixedcase, nonalpha) {
var pwlen = document.forms["changepass"].elements["NewPassword1"].value.length
var ok = true
var oldpw = document.forms["changepass"].elements["OldPassword"].value
var newpw1 = document.forms["changepass"].elements["NewPassword1"].value
var newpw2 = document.forms["changepass"].elements["NewPassword2"].value
var lowercase = "abcdefghijklmnopqrstuvwxyz"
var uppercase = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
var letters = lowercase + uppercase
var hasnonalpha = false
var haslower = false
var hasupper = false
var i
var thischar

//===== If Not Case Sensitive then force all to lower case =====
if (casesensitive==0){
	oldpw = oldpw.toLowerCase()
	newpw1 = newpw1.toLowerCase()
	newpw2 = newpw2.toLowerCase()
}

// ===== Check if NewPassword1 = NewPassword2 =====
if ( newpw1 != newpw2){
	alert ('New Passwords do not match')
	ok = false
}


// ====== Check Min Length =====
if (pwlen < minlength) {
	alert ('Password Length must be:' + minlength)
	ok = false
}


// ====== Check Max Length =====
if (pwlen > maxlength) {
	alert ('Password Length must be:' + maxlength)
	ok = false
}

// ====== Check For Non-Alpha Character =====
if (nonalpha == 1){
	for (var i=0; i < newpw1.length; i++) {
    		thischar = newpw1.charAt(i);
		if (letters.indexOf(thischar) == -1){
			//alert("non-alpha character: " + thischar);
		    hasnonalpha = true;
		    break;
  		}
	}

	if (hasnonalpha == false){
		alert('Password must have a non-alpha character')
		ok = false
	}
}

// ====== Check For Mixed Case Only if CaseSensitive = 1 =====
if (casesensitive==1){
	if (mixedcase == 1){
		// ----- Check for LOWER case -----
		for (var i=0; i < newpw1.length; i++) {
	    		thischar = newpw1.charAt(i);
			if (lowercase.indexOf(thischar) != -1){
				//alert("lowercase character: " + thischar);
			    	haslower = true;
			    break;
	  		}
		}
		// ----- Check for UPPER case -----
		for (var i=0; i < newpw1.length; i++) {
	    		thischar = newpw1.charAt(i);
			if (uppercase.indexOf(thischar) != -1){
				//alert("uppercase character: " + thischar);
			    	hasupper = true;
			    break;
	  		}
		}

		if ((haslower == false) || (hasupper == false)){
			alert('Password must be mixed case')
			ok = false
		}
	}
}

// ===== Only Submit the Form if Everything Checked Out =====
if (ok == true){
	document.forms["changepass"].elements["OldPassword"].value = SHA1(oldpw)
	document.forms["changepass"].elements["NewPassword1"].value = SHA1(newpw1)
	document.forms["changepass"].elements["NewPassword2"].value = SHA1(newpw2)
	document.forms["changepass"].submit()
}
return ok
}