outerHeight and outerWidth return 0 after call ajax

outerHeight and outerWidth return 0 after call ajax

I am using fixedheadertable to create tables scrollable
The number of rows are variable, i'm using outerHeight and outerWidth to get the size og table


I call it with


jQuery(document).ready(function() {
jQuery('#TABLE_1').fixedHeaderTable({parametri});
});

On load of page is all ok
But if i replace div contect with ajax outerHeight and outerWidth return 0
:
I'm using


jQuery.ajax({
url: callFile,
type: 'POST',
async: false,
data: sendVar,
dataType: 'html'
}).done(function(htm){
jQuery("#"+element).html(html);
}
}).fail(function(){
alert('Error Ajax');
}).complete(function(){
jQuery('#TABLE_1').fixedHeaderTable({parametri});
})

How can I fix the problem!!!!
Please help me!!!