Mira, esta es la declaración de funciones:
<!-- Función saludo y calendario -->
<script language="JavaScript">
function greeting()
{
var today = new Date();
var hrs = today.getHours();
document.writeln("<p align=\"left\">");
if ((hrs >=6) && (hrs <=18))
{
document.write(Math.floor(hrs / 10));
document.write(Math.floor(hrs % 10));
}
else
document.write("");
document.write("<b><font face=\"Arial\">");
document.write("Hola, ");
if (hrs < 6)
document.write("buenas madrugadas.");
else if (hrs < 12)
document.write("buenos días.");
else if (hrs <= 18)
document.write("buenas tardes.");
else
document.write("buenas noches.");
document.write("</b></font>");
}
function montharr(m0, m1, m2, m3, m4, m5, m6, m7, m8, m9, m10, m11)
{
this[0] = m0;
this[1] = m1;
this[2] = m2;
this[3] = m3;
this[4] = m4;
this[5] = m5;
this[6] = m6;
this[7] = m7;
this[8] = m8;
this[9] = m9;
this[10] = m10;
this[11] = m11;
}
function calendar()
{
var monthNames = "EneFebMarAbrMayJunJulAgoSepOctNovDic";
var today = new Date();
var thisDay;
var monthDays = new montharr(31, 28, 31, 30, 31, 30, 31, 31, 30,
31, 30, 31);
year = today.getYear() + 1900;
thisDay = today.getDate();
if (((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0))
monthDays[1] = 29;
nDays = monthDays[today.getMonth()];
firstDay = today;
firstDay.setDate(1); // works fine for most systems
testMe = firstDay.getDate();
if (testMe == 2)
firstDay.setDate(0);
startDay = firstDay.getDay();
document.writeln("<CENTER>");
document.write("<TABLE BORDER>");
document.write("<TR><TH COLSPAN=7>");
document.write("<FONT FACE=\"Arial\">");
document.write(monthNames.substring(today.getMonth () * 3,
(today.getMonth() + 1) * 3));
document.write(" ");
document.write(year);
document.write("<FONT FACE=\"Arial\"><TR><TH>D<TH>L<TH>M<TH>Mi<TH>J<TH>V <TH>S");
document.write("<TR>");
column = 0;
for (i=0; i<startDay; i++)
{
document.write("<TD>");
column++;
}
for (i=1; i<=nDays; i++)
{
document.write("<TD>");
if (i == thisDay)
document.write("<FONT COLOR=\"#FF0000\">")
document.write(i);
if (i == thisDay)
document.write("</FONT>")
column++;
if (column == 7)
{
document.write("<TR>");
column = 0;
}
}
document.write("</TABLE>");
document.writeln("</CENTER>");
}
</script>
y esta ya es el saludo:
<!-- El saludo -->
<script language="JavaScript">
greeting();
</script>