php/javascript confusion...guessing this is easy??
Alright, I'm fairly new to php and am not sure of the best way to do this. I've tried it by making a function, posting from the form and nothing seems to be working. I'm sure it's something basic I'm missing...I think I'm mixing my javascript and php and am confused about what I need to do here...
Anyway, I've got a calendar, which is working great so far. I'm just trying to make a simple set of buttons to increment/decrement the year variable and re-submit the form.
The year is initially set from a session variable, which is working fine. I'm thinking I should create another variable, unique to this page, that just tracks the amount that the year has been changed. I had started by setting a session variable "DeltaYear" but am not sure I should be changing the session variable on this page...doesn't seem like the right setup.
Here's the code so far, just looking for something that works for the next/previous button:
PHP Code:
<?php session_start();?>
<script>
//I had started trying to create functions to set the variable, but couldn't figure out how to call them...
function prevYear()
{
if($delta_year>0)
{
$delta_year-1;
}
}
function nextYear()
{
$delta_year+1;
}
</script>
</div>
<div id="content">
<div id="text" style="width:800px;">
<a name="calendar"></a>
<h2>Calendar</h2>
<!--start calendar insert here-->
<div align = "center">
<form action="index3.php" method="post">
<input name="Year" type="hidden" id="Year" value="2012" />
<!--I tried this with both buttons and href links, but neither worked -->
<input name="NextYear" type="button" id="NextYear" value="Next Year" ONCLICK="nextYear" />
<a href='#' onclick='prevYear();'>Next Year</a><br/>
</form>
<?php
print "<h2>".$_SESSION["Year"]."</h2><br/>";
include("includes/calendar.php");
$cal = new calendar();
if (!isset($year)){
$year = $_SESSION["Year"];
$delta_year = $_SESSION["DeltaYear"];
$x=$cal->ShowCalendar($year+$delta_year);
}
?>
</div>
<!--end calendar insert here-->
</div>
</div>
</div>
Thanks!
