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Validate phone number

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Hi, You may use the following script:


function tel()
var message = document.getElementById("InsertRecordPhone").value; 

document.getElementById("InsertRecordPhone").value = (message.replace(/[^\d]/g, '')); 

var message1 = document.getElementById("InsertRecordPhone").value;
var tel =message1.substring(0,3);
if (tel!='031'){
alert("Please enter phone number which starts from 031");
return false;




This function will prevent form from submitting if  phone starts from other numbers. Don't forget to enter your field name instead of mine.

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