var popWin = null;
var popWin2 = null;

function popClose(){
	if (popWin && !popWin.closed){
		popWin.close();
	}
}	

function popOpen(url){
	var w = 800;
	var h = 595;
	var OS = (navigator.appVersion.indexOf("Mac") != -1);
	if (popWin && !popWin.closed){
		popWin.close();
	}
	if (OS){
		h = h + 20;
	}
	popWin = window.open(url, 'popWin', 'width=' + w + ',height=' + h + ',toolbar=0,location=0,directories=0,status=0,scrollbars=0,resizable=0');	
	popWin.focus();
}

function popOpen2(url){
	var w2 = 550;
	var h2 = 450;
	if (popWin2 && !popWin2.closed){
		popWin2.close();
	}
	popWin2 = window.open(url, 'popWin2', 'width=' + w2 + ',height=' + h2 + ',toolbar=0,location=0,directories=0,status=0,scrollbars=0,resizable=0');	
	popWin2.focus();
}

function popOpen3(url){
	var w = 800;
	var h = 600;
	var OS = (navigator.appVersion.indexOf("Mac") != -1);
	if (popWin && !popWin.closed){
		popWin.close();
	}
	if (OS){
		h = h + 20;
	}
	popWin = window.open(url, 'popWin', 'width=' + w + ',height=' + h + ',toolbar=0,location=0,directories=0,status=0,scrollbars=0,resizable=0');	
	popWin.focus();
}
function popOpen4(url){
	var w = 1000;
	var h = 600;
	var OS = (navigator.appVersion.indexOf("Mac") != -1);
	if (popWin && !popWin.closed){
		popWin.close();
	}
	if (OS){
		h = h + 20;
	}
	popWin = window.open(url, 'popWin', 'width=' + w + ',height=' + h + ',toolbar=0,location=0,directories=0,status=0,scrollbars=0,resizable=0');	
	popWin.focus();
}