function phoneFilter(form,format){var input=form.value;if(input.length>0){var numbers="";for(var i=0;i<input.length;i++){var char=input.charAt(i);if(!(isNaN(char)||char==" "))numbers+=char;}
var output="";var n=0,i=0;while(i<format.length&&n<numbers.length){var char=format.charAt(i);if(char=="#"){output+=numbers.charAt(n++)}else{output+=char;}
i++;}
if(numbers.length<10){alert("The number must be of length 10");form.select();}
form.value=output;}}