Put a delay on "this.form.submit ()"?

How to put delay in event this.form.submit() ?

onblur="this.form.submit()"

<input type="text" name="fornecedores" 
       onchange="this.form.submit()" autocomplete="false"  
       value="<?php echo $fornecedores?>" 
       class="fornecedores" placeholder="Fornecedores"  
/>