I guys i'm using a datetimepicker by trentrichardson.com.

I have a form with two input fields : **from** and **to** and i want to be able to set dynamically a minDate to my "to" field equal to the value of my "from" field.

I know i should use a beforShow option but don't know how to implement the function.

```
$('.from,.to').datetimepicker({

    beforeShow: customRange

});

```

**EDITED/SOLUTION**

```
function customRange(input) {   
if (input.id == 'to') {     
var x=$('#from').datepicker("getDate");
$( ".to" ).datepicker( "option", "minDate",x ); 
} 
else if (input.id == 'from') {     
var x=$('#to').datepicker("getDate");
$( ".from" ).datepicker( "option", "maxDate",x ); 
} } 

```