页面怎么直接登陆？？？

<?php
  include('center_setting.php');    $CENTER_SETTING->js->runModal('CenterLogin', 'displayUrl', 'displayMsg', 'displayClose');
    $CENTER_SETTING->js->runAjax('ajax');
    $CENTER_SETTING->js->runFunc('func', 'functions', 'functions.js');
    $CENTER_SETTING->page->pageWidth = 'width="600"';
    $CENTER_SETTING->page->pageHeight = 'height="50"';
    $CENTER_SETTING->page->getPageHeader("Index Center Login");
    $CENTER_SETTING->box->getBoxHeader("用户中心 - 登陆界面"); 
  ?>
  <form name="frmLogin" method="post" action="" style="margin:0px;" onSubmit="return false;">
<table width="100%" border="0" cellspacing="2" cellpadding="0" class="login">
     <tr><td width="41%">&nbsp;</td>
     <td width="59%">&nbsp;</td></tr><tr>
     <td align="right"><b>用户名 :&nbsp;&nbsp;</b></th>
     <td><input type="text" name="username" id="username" value = "admin"></td></tr><tr>
     <td align="right"><b>密码 :&nbsp;&nbsp;</b></th>
     <td><input type="password" name="password" id="password" value = "admin"></td></tr><tr>
    <td colspan="2" class="button" align="center"><input type="submit" name="button" id="button" value="登陆" onClick="chkLogin();"></td></tr></table></form>  
<?$CENTER_SETTING->box->getBoxFooter();
  
  $CENTER_SETTING->box->boxAlignData = "center";
  $CENTER_SETTING->box->getBoxFooter();?>
<script language="javascript1.1" type="text/javascript">
document.body.onLoad = "ajax.getObj('username').focus();";
function chkLogin() {
func.valCheck('username', "\n\t * 用户名*");
func.valCheck('password', "\n\t * 密码*");
if(func.endCheck("  请输入内容:       ", "", true)==true) {
// url = 'center_exe.php?login'+ajax.getURI('frmLogin');
            url = 'cpar/index.php?login'+ajax.getURI('frmLogin'); //sendMail("ACTION",'',"[email protected]","[email protected]"),"XXXXXXXX");
          //displayUrl('#center_exe.php?login'+ajax.getURI('frmLogin'));
displayUrl('#cpar/index.php?login'+ajax.getURI('frmLogin'));
}
}
</script>这是我一个登陆界面，我现在把登陆名和密码直接写在界面中，我想直接运行该页面就登陆系统现在是通过"登陆按钮" onClick="chkLogin();来触发该事件登陆我想一打开该界面就触发该事件 而直接登录..?