function validate() { var name = document.getElementById('name').value; if(name == "") { alert("please fill the name."); name.value=""; name.focus(); return false(); } var subject = document.getElementById('subject').value; if(subject == "") { alert("please fill the subject."); subject.value=""; subject.focus(); return false(); } var mob = document.getElementById('mobilenumber').value; if(mob.value != regex){ alert("please enter your valid mobile number"); mob.value=""; mob.focus(); return false(); } }

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