Takvimde pazar sorunu

Merhaba arkadaşlar bir ajax takvim düzenlemesi yapmaya çalışıyorum ama bazı problemlerim var mesela takvim pazardan başlıyor ben pazartesi başlamasını istiyorum ne yaptıysam beceremedim birde sayfada türkçe problemim yokken takvimde utf 8 olarak kaydedip servera atarsam hata veriyor bana yardım ederseniz çok memnun olurum kodlar aşşağıda

<?php
$file = dirname(__FILE__);
$file = substr($file,0,stripos($file, "wp-content"));
require($file . "/wp-load.php");
global $post,$wpdb;

	$monthNames = Array("Ocak", "Şubat", "Mart", "Nisan", "Mayıs", "Haziran", "Temmuz", "Ağustos", "Eylül", "Ekim", "Kasım", "Aralık");
	
	if (!isset($_REQUEST["mnth"])) $_REQUEST["mnth"] = date("n");
	if (!isset($_REQUEST["yr"])) $_REQUEST["yr"] = date("Y");
	
	$cMonth = $_REQUEST["mnth"];
	$cYear = $_REQUEST["yr"];
	
	$prev_year = $cYear;
	$next_year = $cYear;
	$prev_month = $cMonth-1;
	$next_month = $cMonth+1;
	
	if ($prev_month == 0 ) {
		$prev_month = 12;
		$prev_year = $cYear - 1;
	}
	if ($next_month == 13 ) {
		$next_month = 1;
		$next_year = $cYear + 1;
	}
	$mainlink = $_SERVER['REQUEST_URI'];
	if(strstr($_SERVER['REQUEST_URI'],'?mnth') && strstr($_SERVER['REQUEST_URI'],'&yr'))
	{
		$replacestr = "?mnth=".$_REQUEST['mnth'].'&yr='.$_REQUEST['yr'];
		$mainlink = str_replace($replacestr,'',$mainlink);
	}elseif(strstr($_SERVER['REQUEST_URI'],'&mnth') && strstr($_SERVER['REQUEST_URI'],'&yr'))
	{
		$replacestr = "&mnth=".$_REQUEST['mnth'].'&yr='.$_REQUEST['yr'];
		$mainlink = str_replace($replacestr,'',$mainlink);
	}
	if(strstr($_SERVER['REQUEST_URI'],'?') && !strstr($_SERVER['REQUEST_URI'],'?mnth'))
	{
		$pre_link = $mainlink."&mnth=". $prev_month . "&yr=" . $prev_year;
		$next_link = $mainlink."&mnth=". $next_month . "&yr=" . $next_year;
	}else
	{
		$pre_link = $mainlink."?mnth=". $prev_month . "&yr=" . $prev_year;	
		$next_link = $mainlink."?mnth=". $next_month . "&yr=" . $next_year;
	}

	
	?> 
 <table width="100%">
	<tr align="center">
	<td > 
    
    		<table width="100%">
            	 <tr align="center" class="title">
    <td width="10%" class="title"> <a href="javascript:void(0);" onclick="change_calendar(<?php echo $prev_month; ?>,<?php echo $prev_year; ?>)"> <img src="<?php bloginfo('template_directory'); ?>/library/calendar/previous.png" alt=""  /></a></td>
	<td   class="title"><?php echo $monthNames[$cMonth-1].' '.$cYear; ?></td>
    <td width="10%" class="title"><a href="javascript:void(0);"  onclick="change_calendar(<?php echo $next_month; ?>,<?php echo $next_year; ?>)">  <img src="<?php bloginfo('template_directory'); ?>/library/calendar/next.png" alt=""  /></a> </td>
	</tr>
            </table>
    
     </td>
	<table width="100%" border="0" cellpadding="0" cellspacing="0">
	<tr>
    <td  ></td>
	<td align="right"  ></td>
	</tr>
	</table>
	</td>
	</tr>
	<tr>
	<td align="center">
	<table width="100%" border="0" cellpadding="2" cellspacing="2"  class="calendar_widget">
	
	<tr>
	<td align="center" class="days" ><strong>P</strong></td>
	<td align="center" class="days" ><strong>P</strong></td>
	<td align="center"  class="days" ><strong>S</strong></td>
	<td align="center" class="days" ><strong>Ç</strong></td>
	<td align="center" class="days" ><strong>P</strong></td>
	<td align="center" class="days" ><strong>C</strong></td>
	<td align="center" class="days" ><strong>C</strong></td>
	</tr> 
	<?php
	$timestamp = mktime(0,0,0,$cMonth,1,$cYear);
	$maxday = date("t",$timestamp);
	$thismonth = getdate ($timestamp);
	$startday = $thismonth['wday'];
	
	if($_GET['m'])
	{
		$m = $_GET['m'];	
		$py=substr($m,0,4);
		$pm=substr($m,4,2);
		$pd=substr($m,6,2);
		$monthstdate = "$cYear-$cMonth-01";
		$monthenddate = "$cYear-$cMonth-$maxday";
	}
	global $wpdb;
	for ($i=0; $i<($maxday+$startday); $i++) {
		if(($i % 7) == 0 ) echo "<tr>\n";
		if($i < $startday){
			echo "<td></td>\n";
		}
		else 
		{
			$cal_date = $i - $startday + 1;
			$calday = $cal_date;
			if(strlen($cal_date)==1)
			{
				$calday="0".$cal_date;
			}
			$cMonth1 = $cMonth;
			if(strlen($cMonth)==1)
			{
				$cMonth1="0".$cMonth;
			}
			$urlddate = "$cYear$cMonth1$calday";
			$thelink = site_url()."/?s=cal_event&m=$urlddate";

			$the_cal_date = $cal_date;
			if(strlen($the_cal_date)==1){$the_cal_date = '0'.$the_cal_date;}
			$todaydate = "$cYear-$cMonth1-$the_cal_date";
			$event_of_month_sql = "select p.* from $wpdb->posts p where p.post_type = 'event' and (p.post_status = 'publish' OR p.post_status = 'private' ) and p.ID in (select pm.post_id from $wpdb->postmeta pm where pm.meta_key like 'st_date' and pm.meta_value <= \"$todaydate\" and pm.post_id in ((select pm.post_id from $wpdb->postmeta pm where pm.meta_key like 'end_date' and pm.meta_value>=\"$todaydate\")))";
			$event_post_info_perday = $wpdb->get_results($event_of_month_sql);
			$post_info = '';
				if($event_post_info_perday)
				{
					$post_info .='<span class="popup_event">';
					foreach($event_post_info_perday as $event_post_info_obj)
					{
						$post_info .= ' <a class="event_title" href="'.get_permalink($event_post_info_obj->ID).'">'.$event_post_info_obj->post_title.'</a><small>'.
						 __('<b>Location : </b>').get_post_meta($event_post_info_obj->ID,'geo_address',true) .'<br>'.
						 __('<b>Start Date : </b>').get_formated_date(get_post_meta($event_post_info_obj->ID,'st_date',true)).' '.get_formated_time(get_post_meta($event_post_info_obj->ID,'st_time',true)) .'<br />'. 
						   __('<b>End Date : </b>').get_formated_date(get_post_meta($event_post_info_obj->ID,'end_date',true)).' '.get_formated_time(get_post_meta($event_post_info_obj->ID,'end_time',true)) .'</small>';
					}
					$post_info .='</span>';
				}
				echo "<td class='date_n' align='center' valign='middle' height='20px'>	";
				if($event_post_info_perday)
				{
					echo "<div><a class=\"event_highlight\" href=\"$thelink\" >". ($cal_date) . "</a>".$post_info;
				}else
				{
						echo "<span class=\"no_event\" >". ($cal_date) . "</span>";
				}
				echo "</div></td>\n";
		}
		if(($i % 7) == 6 ) echo "</tr>\n";
	}
	?>
	</table>
	</td>
	</tr>
	</table>