js实现页面跳转几种方式.doc

js实现页面跳转的几种方式
第一种:
<script language="javascript" type="text/javascript">
="?backurl="+;
</script>
第二种:
<script language="javascript">
alert("返回");
(-1);
</script>
第三种:
<script language="javascript">
("");
</script>
第四种:
<script language="JavaScript">
='''';
</script>
第五种:
<script language="javascript">
alert("非法访问!");
='''';
</script> 
实现给上传图片加水印图案的做法
<form action="<?=$_SERVER['PHP_SELF']?>" method="post" enctype="multipart/form-data" name="form1" id="form1">
  <table width="486" border="0" align="center" cellpadding="0" cellspacing="0">
    <tr>
      <td width="498" height="28" background="image/"><div align="center" class="style2">上传图片</div></td>
    </tr>
    <tr>
      <td>&nbsp;</td>
    </tr>
    <tr>
      <td><div align="right">
        <table width="426" border="0" align="center" cellpadding="0" cellspacing="0">
          <tr>
            <td width="50" height="32" nowrap="nowrap">路径:</td>
            <td width="362"><input name="upfile" type="file" id="upfile" size="40" /></td>
          </tr>
         
          <tr>
            <td height="27" colspan="2"><div align="center">
                <input type="submit" name="Submit" value="提交" />
&nbsp;&nbsp;
<input type="reset" name="