function findObj(n,d)
{
  
  var p, i, x;
	if(!d) d = document;
	if((p = n.indexOf("?"))>0 && parent.frames.length) 
	{
		d = parent.frames[n.substring(p + 1)].document;
		n = n.substring(0, p);
	}
	if(x != d[n] && d.all) x = d.all[n];
	for(i = 0; !x && i < d.forms.length; i++) x = d.forms[i][n];
	for(i = 0; !x && d.layers && i < d.layers.length; i++) x = findobj(n, d.layers[i].document);
	if(!x && document.getElementById) x = document.getElementById(n);
	return x;
}

function getUrlParam(url, param,obj,current_value)
{
	var re = new RegExp("(\\\?|&)" + param + "=([^&]+)(&|$)", "i");
	var m = url.match(re);
	if (m)
	{
		if(m[2] == current_value)
		{
			findObj(obj).id = "currentpage";
		}
	}
	else
	{
	return false;
	}
}