Make Focus On Text box by using javascript.

17y7.3k.NET

Hi,
I am working on a project in which there are two textbox one for user id and other for password.
The requirement is that if user enter incorrect user id on that case focus goes to user id text field and if user enters correct user id and wrong password in that case it should show focus on password box.

i have written the below code:

if(objXMLHttp_Login.responseXML.getElementsByTagName(string)[0].childNodes[0].nodeValue == 2)
{
alert(Incorrect E-mail address, user does not exist.);
document.all(txt_username).focus();
document.getElementById(txt_password).value="";
document.getElementById(txt_username).value="";
document.getElementById(div_pre_login).style.display = '';
}
else if(objXMLHttp_Login.responseXML.getElementsByTagName(string)[0].childNodes[0].nodeValue == 0)
{
alert(Incorrect Password.);
document.getElementById(div_pre_login).style.display = '';
document.all.item('txt_password').focus();
document.getElementById(txt_password).value="";
}

Thanks & Regards
Vinay Singh

4 Replies

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Sriram Ramani17y ago
HI , Try this one var a=document.getElementsByTagName("input"); var i; for (i=0;i<(a.length);i++) { if(document.getElementsByTagName("input")[i].value=="") { switch (i) { case 0: alert("Enter the UserName"); document.getElementsByTagName("input")[i].focus(); break; case 1: alert("Enter the Pwd"); document.getElementsByTagName("input")[i].focus(); break; } } }
Nilanka Dharmadasa17y ago
then use like this.
document.formname.elements[ i ].focus()
Here i is the index of the control.
17y ago
Hi,

As u said user .focus();
but it's not working. it's giving error
.focus is not a method.

Regards
vinay
Nilanka Dharmadasa17y ago
Hi friend,

You can set the focus using following code.

document.getElementById(txt_password).focus()

For the username also u can use the same way.

If this helps please accept my answer.