// ===================================================================
// Author: Steve Ng 
//
// ===================================================================

var windowHandler = new Array();
var count = 0;
function onUnLoadCloseChild() 
{
	for (var i=0; i<windowHandler.length; i++) 
	{
		if(!windowHandler[i].closed)
			windowHandler[i].close();
	}
}
function openNewWin(url,winName,setting) 
{
	if (setting == null) setting = 'width=640,height=480,resizable=yes,scrollbars=yes';
	setting += ',toolbar=no,menubar=no,location=no'
	if (!checkOpened(winName)) // only open window if the hyperlink has not been clicked b4
	{
		windowHandler[count] = window.open(url, winName, setting);
		windowHandler[count].focus();	
		count++;
	}
	else // focus screen
	{
		for (var i=0; i<windowHandler.length; i++) 
		{
			if (!windowHandler[i].closed)
			{
				if (windowHandler[i].name == winName)
					windowHandler[i].focus();
			}
		} // end for
	} // end else
}
function checkOpened(winName)
{
	for (var i=0; i<windowHandler.length; i++) 
	{
		if (!windowHandler[i].closed)
		{
			if (windowHandler[i].name == winName) 
			{			
				return true;
			}		
		}
	}
	return false;
}