function getUrlVars(){
    var vars = [], hash;
    var hashes = window.location.href.slice(window.location.href.indexOf('?') + 1).split('&');
    for(var i = 0; i < hashes.length; i++)
    {
      hash = hashes[i].split('=');
      vars.push(hash[0]);
      vars[hash[0]] = hash[1];
    }
    return vars;
  }
function getUrlVar(name){
    return getUrlVars()[name];
  }
  
$(function() {
	var pid = "?p=" + getUrlVar('p');
	if (pid == "?p=1696") pid = "?p=1695";
	var $top = $('ul.mainnav li > a[href*=' + pid + ']:eq(0)');
	if ($top.length > 0) {
		var mclass = $top.parent().attr('class');
		$top.parent().attr('class', 'a' + mclass);
	}
});