Pls Help with Pagination Error

I'm having trouble fixing this pagination error on my site
The pages keep adding on - I'm trying to limit the pages to 15 and then the 'Next' button.
Anyone able to help - much appreciated
Thanks

Code:

<?
	class Paging {
		var $sql;
		var $rs;
		var $numrows;
		var $limit;
		var $noofpage;
		var $offset;
		var $page;
		var $style;
		var $parameter;
		var $activestyle;
		var $buttonstyle;
		function Paging($query) {
			$this->offset=0;
			$this->page=1;
			$this->sql=$query;
			$this->rs=mysql_query($this->sql);
			$this->numrows=mysql_num_rows($this->rs);
		}
		function getNumRows() {
			return $this->numrows;
		}
		function setLimit($no) {
			$this->limit=$no;
		}
		function getLimit() {
			return $this->limit;
		}
		function getNoOfPages() {
			return ceil($this->noofpage=($this->getNumRows()/$this->getLimit()));
		}
		function getPageNo($ext_param="") {
			$str="";
			$str=$str."<table width='100%' border='0'><tr>";
			$str=$str."<td align='left' valign='top'>";
			if($this->getPage()>1) {
				if($ext_param!="")
				{
					$str=$str."<a href='".$_SERVER['PHP_SELF']."?$ext_param&page=".($this->getPage()-1).$this->getParameter()."' class='".$this->getStyle()."'>Back</a>&nbsp;";
				}
				else 
				{
					$str=$str."<a href='".$_SERVER['PHP_SELF']."?page=".($this->getPage()-1).$this->getParameter()."' class='".$this->getStyle()."'>Back</a>&nbsp;";
				}
			}
			for($i=1;$i<=$this->getNoOfPages();$i++) {
				if($i==$this->getPage()) {
					$str=$str."<span class='".$this->getActiveStyle()."'>".$i."&nbsp;</span>";
				}
				else {
					if($ext_param!="")
					{
						$str=$str."<a href='".$_SERVER['PHP_SELF']."?$ext_param&page=".$i.$this->getParameter()."' class='".$this->getStyle()."'>".$i."</a>&nbsp;";
					}
					else 
					{
						if($ext_param!="")
						{	
							$str=$str."<a href='".$_SERVER['PHP_SELF']."?$ext_param&page=".$i.$this->getParameter()."' class='".$this->getStyle()."'>".$i."</a>&nbsp;";
						}
						else 
						{
							$str=$str."<a href='".$_SERVER['PHP_SELF']."?page=".$i.$this->getParameter()."' class='".$this->getStyle()."'>".$i."</a>&nbsp;";
						}
					}
				}
			}
			if($this->getPage()<$this->getNoOfPages()) {
			
				if($ext_param!="")
				{	
					$str=$str."<a href='".$_SERVER['PHP_SELF']."?$ext_param&page=".($this->getPage()+1).$this->getParameter()."' class='".$this->getStyle()."'>Next</a>";
				}
				else 
				{
					$str=$str."<a href='".$_SERVER['PHP_SELF']."?page=".($this->getPage()+1).$this->getParameter()."' class='".$this->getStyle()."'>Next</a>";
				}
			}
			$str=$str."</td>";
			$str=$str."<td align='right' valign='top' class='".$this->getStyle()."'>";
			$str=$str."</td>";
			$str=$str."</tr></table>";
			print $str;
		}
		function getOffset($page) {
			if($page>$this->getNoOfPages()) {
				$page=$this->getNoOfPages();
			}
			if($page=="") {
				$this->page=1;
				$page=1;
			}
			else {
				$this->page=$page;
			}
			if($page=="1") {
				$this->offset=0;
				return $this->offset;
			}
			else {
				for($i=2;$i<=$page;$i++) {
					$this->offset=$this->offset+$this->getLimit();
				}
				return $this->offset;
			}
		}
		function getPage() {
			return $this->page;
		}
		function setStyle($style) {
			$this->style=$style;
		}
		function getStyle() {
			return $this->style;
		}
		function setActiveStyle($style) {
			$this->activestyle=$style;
		}
		function getActiveStyle() {
			return $this->activestyle;
		}
		function setButtonStyle($style) {
			$this->buttonstyle=$style;
		}
		function getButtonStyle() {
			return $this->buttonstyle;
		}
		function setParameter($parameter) {
			$this->parameter=$parameter;
		}
		function getParameter() {
			return $this->parameter;
		}
	}
?>

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