function changeClass(idElement, myClass) {
	$('#' + idElement).attr('class', myClass);	
	//document.getElementById(idElement).setAttribute("class", myClass);
}
function createCookie(name, value, days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
		var expires = "; expires=" + date.toGMTString();
	}
	else var expires = "";
	document.cookie = name + "=" + value + expires + "; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for (var i = 0; i < ca.length; i++) {
		var c = ca[i];
		while (c.charAt(0) == ' ') c = c.substring(1, c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length, c.length);
	}
	return null;
}

function InputHelperIn(obj, text) {
	if (obj.value == text) {
		$(obj)
		        .css({ fontStyle: 'normal' })
		        .val('');
	}
}

function InputHelperOut(obj, text) {
	if (obj.value == '' || obj.value == text) {
		$(obj)
		        .css({ paddingTop: '2px' })
		        .val(text);
	}
}

function InputHelperCreate(obj, text) {

	$(obj)
			.bind('focus', function() {
				InputHelperIn(this, text);
			})
			.bind('blur', function() {
				InputHelperOut(this, text);
			});
	InputHelperOut(obj, text);
}