function classExists(c) {
	return (typeof(c) == "function" && typeof(c.prototype) == "object") ? true : false;
}


function Application() {
}

Application.prototype.init = function() {
	Address.autocomplete();
	People.autocomplete();
	Recepients.autocomplete();

	var c = new Comment;
	c.init();
		

	$('a.print').click(function() {
		window.print();
		return false;
	});
	$('.selector-toggle').focus( function() {
		if( $(this).val() == $(this).attr('title')) {
			$(this).val('');
		}
	});
	$('.selector-toggle').blur( function() {
		if( $(this).val() == "") {
			$(this).val( $(this).attr('title'));
		}
	});
	$('.datepicker').datepicker({
		minDate:'+0d'
	});
	$('select.selector-autosubmit').change( function() {
		$(this).parents('form').submit();
	});
}

var app = new Application;
$(function() {	
	app.init();
});




//---- Knigovna fci ----

/**
 * @see PHP str_replace
 */
function str_replace (search, replace, subject, count) {

	var i = 0, j = 0, temp = '', repl = '', sl = 0, fl = 0,
	f = [].concat(search),
	r = [].concat(replace),
	s = subject,
	ra = r instanceof Array, sa = s instanceof Array;
	s = [].concat(s);
	if (count) {
		this.window[count] = 0;
	}

	for (i=0, sl=s.length; i < sl; i++) {
		if (s[i] === '') {
			continue;
		}
		for (j=0, fl=f.length; j < fl; j++) {
			temp = s[i]+'';
			repl = ra ? (r[j] !== undefined ? r[j] : '') : r[0];
			s[i] = (temp).split(f[j]).join(repl);
			if (count && s[i] !== temp) {
				this.window[count] += (temp.length-s[i].length)/f[j].length;
			}
		}
	}
	return sa ? s : s[0];
}