function loadSpeed()
{
	var pig_or=document.getElementById('pignon_original').value;
	var pig_new=document.getElementById('pignon_new').value;
	var cor_or=document.getElementById('couronne_original').value;
	var cor_new=document.getElementById('couronne_new').value;
	var req = jQuery.post
	( 
		path+'ajax.php?module=Kitchainecalculator&pig_or='+pig_or+'&pig_new='+pig_new+'&cor_or='+cor_or+'&cor_new='+cor_new,
		function(html)
		{
			if(html)
			{
				document.getElementById('calc_res').innerHTML=html;
			}
           	req = null;
		}
	); 

}