function setFocus()

{

    document.implogin.imapuser.focus();

}



function submit_login()

{

    if (document.implogin.imapuser.value == "") {

        alert('请提供你的用户名和密码');

        document.implogin.imapuser.focus();

        return false;

    } else if (document.implogin.pass.value == "") {

        alert('请提供你的用户名和密码');

        document.implogin.pass.focus();

        return false;

    } else {

	if(!document.implogin.imapuser.value.match(/@/)){

		document.implogin.imapuser.value=document.implogin.imapuser.value +"@zj-highway.com";

	}

        return true;

    }

}



function enter_key_trap(e)

{

    var keyPressed;



    if (document.layers) {

        keyPressed = String.fromCharCode(e.which);

    } else if (document.all) {

        keyPressed = String.fromCharCode(window.event.keyCode);

    } else if (document.getElementById) {

        keyPressed = String.fromCharCode(e.keyCode);

    }



    if ((keyPressed == "\r" || keyPressed == "\n") && (submit_login())) {

        document.implogin.submit();

    }

}



if (window.document.captureEvents != null) {

    window.document.captureEvents(Event.KEYPRESS);

    window.document.onkeypress = enter_key_trap;

}