var popUps = new Array();

function openChild(source, name, attributes) 
{
	if (!popUps[name] || popUps[name].closed==true) 
	{
		window.open(source,name,attributes);
	} 
	else 
	{
		popUps[name].close();
		popUps[name] = window.open(source,name,attributes);
	}
}