// Title: Timestamp picker
// Description: See the demo at url
// URL: http://us.geocities.com/tspicker/
// Script featured on: http://javascriptkit.com/script/script2/timestamp.shtml
// Version: 1.0
// Date: 12-05-2001 (mm-dd-yyyy)
// Author: Denis Gritcyuk <denis@softcomplex.com>; <tspicker@yahoo.com>
// Notes: Permission given to use this script in any kind of applications if
//    header lines are left unchanged. Feel free to contact the author
//    for feature requests and/or donations
function succ(dt, fnd_mese, txt_mese, fnd_set, txt_set){
data=dt.split("-")
if(data[0].length==1){data[0]="0"+data[0]}
if(data[1].length==1){data[1]="0"+data[1]}
data2=data[1]+"/"+data[0]+"/"+data[2]
show_calendar('formData.data1', data2, fnd_mese, txt_mese, fnd_set, txt_set)
}

function pre(dt, fnd_mese, txt_mese, fnd_set, txt_set){
data=dt.split("-")
if(data[0].length==1){data[0]="0"+data[0]}
if(data[1].length==1){data[1]="0"+data[1]}
data2=data[1]+"/"+data[0]+"/"+data[2]
show_calendar('formData.data1', data2, fnd_mese, txt_mese, fnd_set, txt_set)
}

function show_calendar(str_target, str_datetime, fnd_mese, txt_mese, fnd_set, txt_set) {

	var arr_months = ["Gennaio", "Febbraio", "Marzo", "Aprile", "Maggio", "Giugno",
		"Luglio", "Agosto", "Settembre", "Ottobre", "Novembre", "Dicembre"];
	var week_days = ["Do", "Lu", "Ma", "Me", "Gi", "Ve", "Sa"];
	var n_weekstart = 1; // day week starts from (normally 0 or 1)

	//var dt_datetime = (str_datetime == null || str_datetime =="" ?  new Date() : str2dt(str_datetime));
	if(str_datetime == null || str_datetime ==""){
	var dt_datetime=	new Date(document.formData.data1.value)
	}
	else{
		var dt_datetime =new Date(str_datetime);
	}
	var dt_prev_month = new Date(dt_datetime);
	dt_prev_month.setMonth(dt_datetime.getMonth()-1);
	var dt_next_month = new Date(dt_datetime);
	dt_next_month.setMonth(dt_datetime.getMonth()+1);
	var dt_firstday = new Date(dt_datetime);
	dt_firstday.setDate(1);
	dt_firstday.setDate(1-(7+dt_firstday.getDay()-n_weekstart)%7);
	var dt_lastday = new Date(dt_next_month);
	dt_lastday.setDate(0);
	
	// html generation (feel free to tune it for your particular application)
	// print calendar header
	var str_buffer = new String (
		"<table class=\"clsOTable\" cellspacing=\"0\" border=\"0\" width=\"100%\" height=\"100\">\n"+
		"<tr><td>\n"
		);
	str_buffer=str_buffer + "<table cellspacing=\"1\" cellpadding=\"1\" border=\"0\" width=\"100%\">\n"+
		"<tr bgcolor=\""+ fnd_mese +"\">\n	<td aling=\"center\"><a href=\"javascript:pre('"+ dt2dtstr(dt_prev_month)+"','"+fnd_mese+"','"+txt_mese+"','"+
		fnd_set+"','"+txt_set+"');\" style=\"text-decoration:none\" title=\"MESE PRECEDENTE\">"+
		"<font color=\"" + txt_mese + "\" face=\"tahoma, verdana\" size=\"1\">&lt;&lt;</font></a></td>\n"+
		"	<td align=\"center\" colspan=\"5\">"+
		"<font color=\"" + txt_mese + "\" face=\"tahoma, verdana\" size=\"2\">"
		+arr_months[dt_datetime.getMonth()]+" "+dt_datetime.getFullYear()+"</font></td>\n"+
		"	<td  align=\"center\"><a href=\"javascript:succ('"+dt2dtstr(dt_next_month)+"','"+fnd_mese+"','"+txt_mese+"','"+
		fnd_set+"','"+txt_set+"');\" style=\"text-decoration:none\" title=\"MESE SUCCESSIVO\">"+
		"<font color=\"" + txt_mese + "\" face=\"tahoma, verdana\" size=\"1\">&gt;&gt;</font></a></td>\n</tr>\n"

	var dt_current_day = new Date(dt_firstday);
	// print weekdays titles
	str_buffer += "<tr>\n";
	for (var n=0; n<7; n++)
		str_buffer += "	<td align=\"right\" bgcolor=\"" + fnd_set + "\">"+
		"<font color=\"" + txt_set + "\" face=\"tahoma, verdana\" size=\"2\">"+
		week_days[(n_weekstart+n)%7]+"</font></td>\n";
	// print calendar table
	str_buffer += "</tr>\n";
	while (dt_current_day.getMonth() == dt_datetime.getMonth() ||
		dt_current_day.getMonth() == dt_firstday.getMonth()) {
		// print row heder
		str_buffer += "<tr>\n";
		for (var n_current_wday=0; n_current_wday<7; n_current_wday++) {
				if (dt_current_day.getDate() == dt_datetime.getDate() &&
					dt_current_day.getMonth() == dt_datetime.getMonth())
					// print current date
					str_buffer += "	<td bgcolor=\"#FFB6C1\" align=\"right\">";
				else if (dt_current_day.getDay() == 0 || dt_current_day.getDay() == 6)
					// weekend days
					str_buffer += "	<td bgcolor=\"#DBEAF5\" align=\"right\">";
				else
					// print working days of current month
					str_buffer += "	<td bgcolor=\"white\" align=\"right\">";

				if (dt_current_day.getMonth() == dt_datetime.getMonth())
					// print days of current month
					str_buffer += "<a href=\"pass_evento.asp?data="+ dt2dtstr(dt_current_day)+
					"\" target=\"_blank\" style=\"text-decoration:none\">" +
					"<font color=\"black\" face=\"tahoma, verdana\" size=\"2\">";
				else 
					// print days of other months
					str_buffer += "<a href=\"pass_evento.asp?data="+ dt2dtstr(dt_current_day)+
					"\" target=\"_blank\" style=\"text-decoration:none\">" +
					"<font color=\"gray\" face=\"tahoma, verdana\" size=\"2\">";
				str_buffer += dt_current_day.getDate()+"</font></a></td>\n";
				dt_current_day.setDate(dt_current_day.getDate()+1);
		}
		// print row footer
		str_buffer += "</tr>\n";
	}
	// print calendar footer
	str_buffer +=
		"</table>\n" +
		"</tr>\n</td>\n</table>\n" 

document.getElementById("cale").innerHTML = str_buffer
	//document.write (str_buffer)
}
// datetime parsing and formatting routimes. modify them if you wish other datetime format
function str2dt (str_datetime) {
	var re_date = /^(\d+)\-(\d+)\-(\d+)\s+(\d+)\:(\d+)\:(\d+)$/;
	if (!re_date.exec(str_datetime))
		//return alert("Invalid Datetime format: "+ str_datetime);
	return (new Date (RegExp.$3, RegExp.$2-1, RegExp.$1, RegExp.$4, RegExp.$5, RegExp.$6));
}
function dt2dtstr (dt_datetime) {
	return (new String (
			dt_datetime.getDate()+"-"+(dt_datetime.getMonth()+1)+"-"+dt_datetime.getFullYear()+" "));
}
function dt2tmstr (dt_datetime) {
	return (new String (
			dt_datetime.getHours()+":"+dt_datetime.getMinutes()+":"+dt_datetime.getSeconds()));
}