I want to validate phonenumber on keypress event of text filed
111-111-1111
I done that work in crm 4(below code) but it does not work in crm 2011
onload I write that code in crm 4
ValidateCharacters = function() {
var x=crmForm.all.telephone1.DataValue;
var key = event.keyCode;
if(key >= 48 && key <= 57) {
if(x.length <12){
if(x.length==3){crmForm.all.telephone1.DataValue=x+"-";}
if(x.length==7){crmForm.all.telephone1.DataValue=x+"-";}
event.returnValue = true;
return true;
}else{return false;}
}
else {
event.returnValue = false;
return false;
}
}
crmForm.all.telephone1.attachEvent('onkeypress',ValidateCharacters);
how to change that in crm 2011.