Make Focus On Text box by using javascript.

Question

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

Sriram Ramani · Answer

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 Dharmadasa · Answer

then use like this. document.formname.elements[ i ].focus() Here i is the index of the control.

vinay singh · Answer

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

Nilanka Dharmadasa · Answer

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.