function popUp(url,w,h) {
	var putItThere = null;
	var chasm = screen.availWidth;
	var mount = screen.availHeight;

	pupWindow = window.open(url,'posB1','width='+w+',height='+h+',left='+((chasm-w-10)*.5)+',top='+((mount-h-30)*.5)+',location=0,toolbar=0,menubar=0,status=0,resizable=1,scrollbars=1');
	pupWindow.focus();
}

function delUp()
{
	pupWindow.close();
}

function popUp2(url,w,h) {
	dhtmlwindow.open("ajaxboxsadf", "iframe", url, "System info...", "width="+w+",height="+h+",left=300px,top=100px,resize=1,scrolling=1")
}

function delUp2()
{
	dhtmlwindow.close();
}

function checkNums(obj)
{
	var checkOK = "0123456789.";
	var checkStr = $(obj).val();
	var allValid = true;
	var validGroups = true;
	var decPoints = 0;
	var allNum = "";

	if(checkStr=='')
	{
		alert("請輸入大於 0 的有效數字。");
		$(obj).val('');
		$(obj).focus();
		return (false);
	}

	if(checkStr.charAt(0)=='0')
	{
		alert("請輸入大於 0 的有效數字。");
		$(obj).val('');
		$(obj).focus();
		return (false);
	}

	for (i = 0;  i < checkStr.length;  i++)
	{
		ch = checkStr.charAt(i);
		for (j = 0;  j < checkOK.length;  j++)
			if (ch == checkOK.charAt(j))
				break;
		if (j == checkOK.length)
		{
			allValid = false;
			break;
		}
		if (ch == ".")
		{
			allNum += ".";
			decPoints++;
		}
		else
			allNum += ch;
	}
	if (!allValid)
	{
		alert("請輸入大於 0 的有效數字。");
		$(obj).val('');
		$(obj).focus();
		return (false);
	}

	if (decPoints > 1 || !validGroups)
	{
		alert("請輸入大於 0 的有效數字。");
		$(obj).val('');
		$(obj).focus();
		return (false);
	}

	return (true);
}