function popWindow( url, width, height, windowName ){
    //get center coords
	var left = (screen.width - width) / 2;
	var top = (screen.height - height) / 2;
	window.open(url, windowName, 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=' + width + ',height=' + height + ',left=' + left + ',top=' + top);
}

function popScrollingWindow(url, width, height, windowName){
    //get center coords
    var left = (screen.width - width) / 2;
    var top = (screen.height - height) / 2;
    window.open(url, windowName, 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=0,width=' + width + ',height=' + height + ',left=' + left + ',top=' + top);
}

function openWindow(url){
    var rand = "_blank";
	window.open(url,rand,"directories=yes,location=yes,menubar=yes,scrollbars=yes,status=yes,toolbar=yes,resizable=yes");
}