var keybYN = new keybEdit('yn','Valid values are \'Y\' or \'N\'.');
var keybNumeric = new keybEdit('01234567890','Dozvoljeni su samo brojevi u ovom polju!');
var keybAlpha = new keybEdit('abcdefghijklmnopqurstuvwxy ','Alpha input only.');
var keybAlphaNumeric = new keybEdit('abcdefghijklmnopqurstuvwxy01234567890 ','Alpha-numeric input only.');
var keybDecimal = new keybEdit('01234567890.','Decimal input only.');
var keybDate =  new keybEdit('01234567890/','Date input only');;
var keybYNNM = new keybEdit('yn');
var keybNumericNM = new keybEdit('01234567890');
var keybAlphaNM = new keybEdit('abcdefghijklmnopqurstuvwxy');
var keybAlphaNumericNM = new keybEdit('abcdefghijklmnopqurstuvwxy01234567890');
var keybDecimalNM = new keybEdit('01234567890.');
var keybDateNM = new keybEdit('01234567890/');;

function keybEdit(strValid, strMsg) {
	//	Variables
	var reWork = new RegExp('[a-z]','gi');		//	Regular expression\

	//	Properties
	if(reWork.test(strValid))
		this.valid = strValid.toLowerCase() + strValid.toUpperCase();
	else
		this.valid = strValid;

	if((strMsg == null) || (typeof(strMsg) == 'undefined'))
		this.message = '';
	else
		this.message = strMsg;

	//	Methods
	this.getValid = keybEditGetValid;
	this.getMessage = keybEditGetMessage;
	
	function keybEditGetValid() {
		return this.valid.toString();
	}
	
	function keybEditGetMessage() {
		return this.message;
	}
}

function editNumericOnly(objForm, objKeyb, evt) 
{
	strWork = objKeyb.getValid();
	strMsg = '';							// Error message
	blnValidChar = false;					// Valid character flag

	// Part 1: Validate input
	if(!blnValidChar)
		for(i=0;i < strWork.length;i++)
			if(((window.event)?event.keyCode:evt.which) == strWork.charCodeAt(i)) {
				blnValidChar = true;

				break;
			}

	// Part 2: Build error message
	if(!blnValidChar) {
		if(objKeyb.getMessage().toString().length != 0)
			alert('Error: ' + objKeyb.getMessage());

		//window.event.returnValue = false;		// Clear invalid character
		if (!evt) // if the parameter is provided by the browser
		  {
		    evt = window.event;
		  }     
		
		  if (evt.preventDefault)  // firefox style
		  {
		    evt.preventDefault();
		  }
		  else
		  {
		    evt.returnValue = false;
		  }
		objForm.focus();						// Set focus
	}
}