// JavaScript Document

function replaceParam(url,name,value)
{
	var query;
	var parms;
	var pos, paraName, paraValue;
	var ret="";
	var found=0;
	pos=url.indexOf("?");
	if (pos<0)
	{
		page=url;
		query="";
	}
	else
	{
		page=url.substring(0,pos);
		query=url.substring(pos+1);
		parms=query.split("&");

		for(var i=0; i<parms.length; i++)
		{
				parm=parms[i].split("=");
				if (parm[0]==name)		
				{
					found=1;
					paraValue=value;
				}
				else
					paraValue=parm[1];
					
	
				if (ret.length>0)
					ret=ret+"&";
					
				ret=ret+parm[0] + "=" + paraValue;
				
		
		}

	}
	if (!found)
	{
		if (ret.length>0)
			ret=ret+"&";
		ret=ret+name+ "=" + value;

	}

	return page +"?"+ret;
}
function sortColumn(column,order)
{
	var url;
	url=location.href;
	url=replaceParam(url,"sortBy",column);
	url=replaceParam(url,"sortOrder",order);
	location.href=url;
}