/* ---------------------------------------------------------------------------------------------
* myPass v1.0 - jQuery password-hiding iPhone-Style
*
* Copyright (c) 2009 Oliver Storm, Stefan Huissel( http://www.mysrc.de )
*				Feel free to redistribute the script/modify it, as
*			   	long as you leave my infos at the top.
*
*
* Date Thu, 30 Jun 2009
*
* Defaults: 	charReplace -> Unicode for the symbol that will be displayed
*	          	instead of the character. You can find a good overview here:
*			  	http://www.fileformat.info/format/w3c/entitytest.htm?sort=Unicode+Character
*
*			  	charDuration -> Duration how long the last character will be shown when no
*			  	further input is made.
*
---------------------------------------------------------------------------------------------- */


(function($){

	$.fn.myPass = function(options) {

		var defaults = {
			charReplace : '%u25CF',
			charDuration : 1000
		}

		var opts = $.extend(defaults, options);
		var	aktiv = null;

		$(this).each(function(){
			tempField = $(this).attr('name');
			$(this).attr('name','tmp_'+tempField);
			$(this).parent().append('<input name="'+tempField+'" id="'+tempField+'" type="hidden" value="" />');

		});


		$(this).bind("keypress", function(evt) {
			clearTimeout(aktiv);
			var hiddenPass = '';
			if($(this).val().length > 0){
				if(evt.which == 8){
					deleteLast(this);
				}else{
					currentValue = currentValue + $(this).val().slice($(this).val().length - 1);
					for (i=0; i<=$(this).val().length-1; ++i){
						hiddenPass = hiddenPass + unescape(opts.charReplace);
					}
					lastLetter = $(this).val().charAt($(this).val().length-1);
					if(lastLetter != unescape(opts.charReplace)){
						saveString(lastLetter,this);
					}
					$(this).val(hiddenPass);
					aktiv = setTimeout("hideAll('" + $(this).attr('name') + "')", opts.charDuration);
				}
			}else{
				currentValue = $(this).val();
				var tempField = $(this).attr('name');
				var hiddenID = tempField.substr(tempField.indexOf('_')+1);
				$('#'+hiddenID).val('');
			}


		});

		hideAll = function(el){
			lastLetter = $('input[name='+el+']').val().charAt($('input[name='+el+']').val().length-1);
			var hiddenID = el.substr(el.indexOf('_')+1);
			var tmpstr = $('#'+hiddenID).val();
			$('#'+hiddenID).val(tmpstr + lastLetter);

			var hiddenPass = '';
			for (i=0; i<=$('input[name='+el+']').val().length-1; ++i){
					hiddenPass = hiddenPass + unescape(opts.charReplace);
				}

			$('input[name='+el+']').val(hiddenPass);
		}

		saveString = function(str,el){
			var tempField = $(el).attr('name');
			var hiddenID = tempField.substr(tempField.indexOf('_')+1);

			var tmpstr = $('#'+hiddenID).val();
			$('#'+hiddenID).val(tmpstr + str);
		}

		deleteLast = function(el){
			var tempField = $(el).attr('name');
			var hiddenID = tempField.substr(tempField.indexOf('_')+1);
			var tmpstr = $('#'+hiddenID).val();
			var length = $('#'+hiddenID).val().length;
			$('#'+hiddenID).val(tmpstr.substring(0,length-1));
		}

	};

})(jQuery);