//form validation for QMS
window.name = "main";



// ----------------------------------------------------------------------
// Javascript form validation routines.
// Author: Stephen Poley
//
// Simple routines to quickly pick up obvious typos.
// All validation routines return true if executed by an older browser:
// in this case validation must be left to the server.
//
// Update Jun 2005: discovered that reason IE wasn't setting focus was
// due to an IE timing bug. Added 0.1 sec delay to fix.
//
// Update Oct 2005: minor tidy-up: unused parameter removed
//
// Update Jun 2006: minor improvements to variable names and layout
// ----------------------------------------------------------------------

var nbsp = 160;		// non-breaking space char
var node_text = 3;	// DOM text node-type
var emptyString = /^\s*$/ ;
var global_valfield;	// retain valfield for timer thread

// --------------------------------------------
//                  trim
// Trim leading/trailing whitespace off string
// --------------------------------------------

function trim(str)
{
  return str.replace(/^\s+|\s+$/g, '');
}


// --------------------------------------------
//                  setfocus
// Delayed focus setting to get around IE bug
// --------------------------------------------

function setFocusDelayed()
{
  global_valfield.focus();
}

function setfocus(valfield)
{
  // save valfield in global variable so value retained when routine exits
  global_valfield = valfield;
  setTimeout( 'setFocusDelayed()', 100 );
}


// --------------------------------------------
//                  msg
// Display warn/error message in HTML element.
// commonCheck routine must have previously been called
// --------------------------------------------

function msg(fld,     // id of element to display message in
             msgtype, // class to give element ("warn" or "error")
             message) // string to display
{
  // setting an empty string can give problems if later set to a 
  // non-empty string, so ensure a space present. (For Mozilla and Opera one could 
  // simply use a space, but IE demands something more, like a non-breaking space.)
  var dispmessage;
  if (emptyString.test(message)) 
    dispmessage = String.fromCharCode(nbsp);    
  else  
    dispmessage = message;

  var elem = document.getElementById(fld);
  elem.firstChild.nodeValue = dispmessage;  
  
  elem.className = msgtype;   // set the CSS class to adjust appearance of message
}

// --------------------------------------------
//            commonCheck
// Common code for all validation routines to:
// (a) check for older / less-equipped browsers
// (b) check if empty fields are required
// Returns true (validation passed), 
//         false (validation failed) or 
//         proceed (don't know yet)
// --------------------------------------------

var proceed = 2;  

function commonCheck    (valfield,   // element to be validated
                         infofield,  // id of element to receive info/error msg
                         required)   // true if required
{
  if (!document.getElementById) 
    return true;  // not available on this browser - leave validation to the server
  var elem = document.getElementById(infofield);
  if (!elem.firstChild) return true;  // not available on this browser 
  if (elem.firstChild.nodeType != node_text) return true;  // infofield is wrong type of node  

  if (emptyString.test(valfield.value)) {
    if (required) {
      msg (infofield, "error", "This is a required field.");  
      setfocus(valfield);
      return false;
    }
    else {
      msg (infofield, "warn", "");   // OK
      return true;  
    }
  }
  return proceed;
}

// --------------------------------------------
//            validatePresent
// Validate if something has been entered
// Returns true if so 
// --------------------------------------------

function validatePresent(valfield,   // element to be validated
                         infofield ) // id of element to receive info/error msg
{
  var stat = commonCheck (valfield, infofield, true);
  if (stat != proceed) return stat;

  msg (infofield, "warn", "");  
  return true;
}

// --------------------------------------------
//               validateEmail
// Validate if e-mail address
// Returns true if so (and also if could not be executed because of old browser)
// --------------------------------------------

function validateEmail  (valfield,   // element to be validated
                         infofield,  // id of element to receive info/error msg
                         required)   // true if required
{
  var stat = commonCheck (valfield, infofield, required);
  if (stat != proceed) return stat;

  var tfld = trim(valfield.value);  // value of field with whitespace trimmed off
  var email = /^[^@]+@[^@.]+\.[^@]*\w\w$/  ;
  if (!email.test(tfld)) {
    msg (infofield, "error", "ERROR: This does not appear a valid e-mail address");
    setfocus(valfield);
    return false;
  }

  var email2 = /^[A-Za-z][\w.-]+@\w[\w.-]+\.[\w.-]*[A-Za-z][A-Za-z]$/  ;
  if (!email2.test(tfld)) 
    msg (infofield, "warn", "Unusual e-mail address - check if correct");
  else
    msg (infofield, "warn", "");
  return true;
}
// --------------------------------------------
//               validateTime
// Validate time form
// Returns true if so (and also if could not be executed because of old browser)
// --------------------------------------------

function validateTime  (valfield,   // element to be validated
                         infofield,  // id of element to receive info/error msg
                         required)   // true if required
{
  var stat = commonCheck (valfield, infofield, required);
  if (stat != proceed) return stat;

  var tfld = trim(valfield.value);  // value of field with whitespace trimmed off
  var email = /^(\d\d):(\d\d):(\d\d)$/;
  if (!email.test(tfld)) {
    msg (infofield, "error", "Use hh:mm:ss for the time.");
    setfocus(valfield);
    return false;
  }

  var email2 = /^(\d\d):(\d\d):(\d\d)$/;
  if (!email2.test(tfld)) 
    msg (infofield, "warn", "Unusual e-mail address - check if correct");
  else
    msg (infofield, "warn", "");
  return true;
}
//VALIDTAE DATE
function validateDate  (valfield,   // element to be validated
                         infofield,  // id of element to receive info/error msg
                         required)   // true if required
{
  var stat = commonCheck (valfield, infofield, required);
  if (stat != proceed) return stat;

  var tfld = trim(valfield.value);  // value of field with whitespace trimmed off
  var email = /^(\d\d\d\d)-(\d\d)-(\d\d)$/;
  if (!email.test(tfld)) {
    msg (infofield, "error", "Use yyyy-mm-dd for the date.");
    setfocus(valfield);
    return false;
  }

  var email2 = /^(\d\d\d\d)-(\d\d)-(\d\d)$/;
  if (!email2.test(tfld)) 
    msg (infofield, "warn", "");
  else
    msg (infofield, "warn", "");
  
 realDate(valfield.value);
 return true;
}
function realDate(chunk){
	var chunk=chunk;
	//alert("yo!"+chunk);
	var formdate = document.getElementById("txtdate").value;
	//alert("ready!"+ email);
	formdate=formdate.split('-').join('');
	var year=formdate.slice(0,4);
	var month=formdate.slice(4,6);
	var day=formdate.slice(6,8);
	//alert("ready! y="+ year+"m="+month+"d="+day);
	x = new Date();
	var y=x.getFullYear();
	var m=x.getMonth(); m=m+1; if (m<10){m="0"+m};
	var d=x.getDate(); //d="0"+(d+1);
	//alert ("today= " + y + m + d);
	var date1 = new Date(year, month, day);
	var date2 = new Date(y,m,d);
	if (date2<date1){//alert("older?=");
	nd = y+"-"+m+"-"+d;
	newDate(nd);
	//return true;
	}
	//if (year>y){alert("error");}
	
	
	}
function newDate(formatted){
	document.getElementById('frmProb').txtdate.value=formatted;
	
	}
//check for populated dropdowns
	function validateDD(ddname, errorBox){
		
		if (ddname.value=="00"){//alert ("zero value"+ddname.value);
		msg(errorBox, "error", "Choose an item from the dropdown menu"); return false;}
		else {
		//alert ("notxz value"+ddname.value);
		  msg (errorBox, "warn", "");
  			return true;
		
		}
		}
		//check for selected radio button
	function validateRadio(radioname, errorBox){
		
						var myOption = -1;
				for (i=radioname.length-1; i > -1; i--) {
				if (radioname[i].checked) {
				myOption = i;}
				alert("looped"+myOption);
				}
		
		if (radioname.value!=i){//alert ("zero RADIO"+radioname.value);
		msg(errorBox, "error", "Select a service"); return false;}
		else {
		//alert ("notxz value"+ddname.value);
		  msg (errorBox, "warn", "");
  			return true;
		
		}
		}