function goback(url)
{
	var form = document.getElementById('donate');
	form.action = url;
	form.submit();
}

function sort(obj, url)
{
	var args = obj.options[obj.selectedIndex].value;
	var href = url + args;
	location.href = href;
}

// to set lenth of text area
function maxlength(object, maxlen)
{
  return (object.value.length <= (maxlen));
}

// to display the text areas length
function displaylen(object, maxlen, element)
{
    var remain = maxlen-object.value.length;
    if (remain >= 0) {
    	document.getElementById(element).value = remain;
    }
}