function PopUp(href, winName, w, h, location, scrollbars, resizable, status, toolbar, menubar){
	var winLeft=(screen.width - w) / 2;
	var winTop=(screen.height - h) / 2;
	winProps="width=" + w + ",height=" + h + ",top=" + winTop + ",left=" + winLeft + ",location=" + location + ",scrollbars=" + scrollbars + ",resizable=" + resizable + ",status=" + status + ",toolbar=" + toolbar + ",menubar=" + menubar;
	winOpen=window.open(href, winName, winProps);
	winOpen.window.focus();
}

/* example : <a href="http://www.gslsolutions.com" onclick="PopUp(this.href, '', 625, 450, location, scrollbars, resizable, status, toolbar, menubar); return false;" onMouseOver="window.status=''; return true;" onMouseOut="window.status=''; return true;" target="_blank"> test this! </a> */