Chỉnh kích thướt hình ảnh javascript

HTML:
<a class="pic" href="#"><img src="img" alt="tieude" onload="resize_f(this,140,100)" height="100" width="90" style="margin-top: 0px; margin-left: 24.9296px; display: block;"></a>

****JAVASCRIPT:
Download: tại đây

#CODE PHP#
function laychieuronglamchuan ($link,$width,$maxheight){;
$info=@getimagesize($link);
if($info[1]!=0){
$tyle=$info[0]/$info[1];
$chieurong=$width;
$chieucao=$chieurong/$tyle;
$max=$maxheight;
if($chieucao>$maxheight){
$chieucao=$max;
$chieurong=$chieucao*$tyle;
}
}else{
$chieurong=$width;
//$chieucao=$chieurong/$tyle;
$chieucao="";
}
$return[0]= $chieurong;
$return[1]= $chieucao;
return $return;
}

//code images

$image=$data[$i]["images"];//thay link
$thum= new thumnail();
if(file_exists(INCLUDE_PATH."uploads/shop/pic/".$image) && $image!="")
{
if(!file_exists(INCLUDE_PATH."uploads/shop/pic/small_".$image))
{

$outpath="uploads/shop/pic";
$inpath="uploads/shop/pic";
$outimg=$image;
$inimg="small_".$image;
$insize=180;
thumbs($outpath,$inpath,$outimg,$inimg,$insize);
}
$link="".$site_live."uploads/shop/pic/small_".$image."";
$width=248;
$max=190;
//print_r(array($link,$width,$max));
$info=laychieuronglamchuan ($link,$width,$max);
$width=$info[0];
$height=$info[1];
$pic="<img src=\"".$link."\" width=\"".$width."\" height=\"".$height."\" >";
}else{
$pic="";
}