var newWin;		
function showPage(page,width,height,left,top,scrollbars)
{	
	if (typeof(newWin) != "undefined")
	{
		newWin.close();
	};
	newWin=window.open(page,"samewindow","width="+width+",height="+height+",left="+left+",top="+top+",scrollbars="+scrollbars);
	newWin.focus();
	return false;
};