function van(ent_3, ent_4, ent_5) 
{
if ((document.van_t.ent_1.options[0].selected) && (document.van_t.ent_2.options[0].selected))
  {

  var coeff = 8.061;
  var coeff_1 = 0.422;
  var coeff_2 = 0;
}

if ((document.van_t.ent_1.options[0].selected) && (document.van_t.ent_2.options[1].selected))
  {
var coeff = 7.606;
var coeff_1 = 0.386;
  var coeff_2 = 0;
}

if ((document.van_t.ent_1.options[0].selected) && (document.van_t.ent_2.options[2].selected))
  {
var coeff = 7.191;
var coeff_1 = 0.352;
  var coeff_2 = 0;
}

if ((document.van_t.ent_1.options[1].selected) && (document.van_t.ent_2.options[0].selected))
  {

  var coeff = 9.129;
  var coeff_1 = 0.422;
  var coeff_2 = 0;
}

if ((document.van_t.ent_1.options[1].selected) && (document.van_t.ent_2.options[1].selected))
  {
var coeff = 8.514;
var coeff_1 = 0.386;
  var coeff_2 = 0;
}

if ((document.van_t.ent_1.options[1].selected) && (document.van_t.ent_2.options[2].selected))
  {
var coeff = 7.963;
var coeff_1 = 0.352;
  var coeff_2 = 0;
}

if ((document.van_t.ent_1.options[2].selected) && (document.van_t.ent_2.options[0].selected))
  {

  var coeff = 9.823;
  var coeff_1 = 0.422;
  var coeff_2 = 0.178;
}

if ((document.van_t.ent_1.options[2].selected) && (document.van_t.ent_2.options[1].selected))
  {
var coeff = 9.077;
var coeff_1 = 0.386;
  var coeff_2 = 0.149;
}

if ((document.van_t.ent_1.options[2].selected) && (document.van_t.ent_2.options[2].selected))
  {
var coeff = 8.422;
var coeff_1 = 0.352;
  var coeff_2 = 0.124;
}



  var resultat = ent_3 - (-(ent_4*coeff) - (ent_5*coeff_1) - (ent_5*coeff_2));
  
document.van_t.result.value = Math.round(resultat* 100)/100;
     }




function vanc(ent_33, ent_44, ent_55) 
{
if ((document.van_1.ent_11.options[0].selected) && (document.van_1.ent_22.options[0].selected))
  {

  var coeff = 8.061;
  
}

if ((document.van_1.ent_11.options[0].selected) && (document.van_1.ent_22.options[1].selected))
  {
var coeff = 7.606;

}

if ((document.van_1.ent_11.options[0].selected) && (document.van_1.ent_22.options[2].selected))
  {
var coeff = 7.191;

}

if ((document.van_1.ent_11.options[1].selected) && (document.van_1.ent_22.options[0].selected))
  {

  var coeff = 9.129;
  
}

if ((document.van_1.ent_11.options[1].selected) && (document.van_1.ent_22.options[1].selected))
  {
var coeff = 8.514;

}

if ((document.van_1.ent_11.options[1].selected) && (document.van_1.ent_22.options[2].selected))
  {
var coeff = 7.963;

}

if ((document.van_1.ent_11.options[2].selected) && (document.van_1.ent_22.options[0].selected))
  {

  var coeff = 9.823;
  
}

if ((document.van_1.ent_11.options[2].selected) && (document.van_1.ent_22.options[1].selected))
  {
var coeff = 9.077;

}

if ((document.van_1.ent_11.options[2].selected) && (document.van_1.ent_22.options[2].selected))
  {
var coeff = 8.422;

}



  var resulta = ent_33 - (-(ent_44*coeff) - (ent_55*coeff));
  
document.van_1.resul.value = Math.round(resulta* 100)/100;
     }




function vanr(ent_13, ent_14, ent_15, ent_16) 
{
if ((document.van_2.ent_11.options[0].selected) && (document.van_2.ent_12.options[0].selected))
  {

  var coeff = 8.061;
  var coeff_1 = 0.422;
  var coeff_2 = 0;
}

if ((document.van_2.ent_11.options[0].selected) && (document.van_2.ent_12.options[1].selected))
  {
var coeff = 7.606;
var coeff_1 = 0.386;
  var coeff_2 = 0;
}

if ((document.van_2.ent_11.options[0].selected) && (document.van_2.ent_12.options[2].selected))
  {
var coeff = 7.191;
var coeff_1 = 0.352;
  var coeff_2 = 0;
}

if ((document.van_2.ent_11.options[1].selected) && (document.van_2.ent_12.options[0].selected))
  {

  var coeff = 9.129;
  var coeff_1 = 0.422;
  var coeff_2 = 0;
}

if ((document.van_2.ent_11.options[1].selected) && (document.van_2.ent_12.options[1].selected))
  {
var coeff = 8.514;
var coeff_1 = 0.386;
  var coeff_2 = 0;
}

if ((document.van_2.ent_11.options[1].selected) && (document.van_2.ent_12.options[2].selected))
  {
var coeff = 7.963;
var coeff_1 = 0.352;
  var coeff_2 = 0;
}

if ((document.van_2.ent_11.options[2].selected) && (document.van_2.ent_12.options[0].selected))
  {

  var coeff = 9.823;
  var coeff_1 = 0.422;
  var coeff_2 = 0.178;
}

if ((document.van_2.ent_11.options[2].selected) && (document.van_2.ent_12.options[1].selected))
  {
var coeff = 9.077;
var coeff_1 = 0.386;
  var coeff_2 = 0.149;
}

if ((document.van_2.ent_11.options[2].selected) && (document.van_2.ent_12.options[2].selected))
  {
var coeff = 8.422;
var coeff_1 = 0.352;
  var coeff_2 = 0.124;
}



  var resultats = (ent_16*coeff) - ent_13 - (ent_14*coeff) - (ent_15*coeff_1) - (ent_15*coeff_2);
  
document.van_2.results.value = Math.round(resultats* 100)/100;
     }