<!-- Author: Brian Mackenzie -->
<!-- Date: 20 June 2007 -->
<!-- Version: 4.0 -->


function normst()
{	
  var sex = document.norms.gender.options[document.norms.gender.selectedIndex].value;
  var wu = document.norms.weightunits.options[document.norms.weightunits.selectedIndex].value;
  var w = document.norms.weight.value;
  var li = document.norms.lift.value;
  var res = new Array(3);
  
  var male = [0,-32.96826,1.1434899,-0.001954,-42.62987,1.4449571,-0.00247,-50.0877,1.7100209,-0.002913,-50.0877,1.7100209,-0.002913,-66.10571,2.1362461,-0.003649,-86.25974,2.8899142,-0.004939,-65.20714,2.276552,-0.003872,-88.78533,2.8639385,-0.004902,-109.9896,3.8098637,-0.006489,-82.32658,2.8430831,-0.004831,-103.4815,3.3525427,-0.005749,-96.77279,4.350981,-0.007716,-48.4095,1.647642,-0.002803,-66.15688,2.0842949,-0.003574,-77.69956,2.7287528,-0.004646];
  
  var female = [0,-2.699576,0.5265098,-0.000677,-1.724187,0.6101539,-0.000793,5.9889675,0.6743817,-0.000574,-0.852617,0.7430886,-0.000874,-0.429137,0.851378,-0.000973,1.4178218,1.0679568,-0.00117,-5.399151,1.0530196,-0.001354,2.8659123,1.0926021,-0.001153,-3.177935,1.5451759,-0.001882,-3.552192,1.2695984,-0.001552,-3.153324,1.4615319,-0.001766,10.223479,2.0022288,-0.003129,1.6200849,0.6840898,-0.000742,-7.270721,0.9200849,-0.001273,-1.50297,1.1023102,-0.00132];
  
  w = w*1;
  
    if (wu == "kgs")
    {
        w *= 2.205;
    }

  li=li*1;
  x=((li-1)*9)+1;
  
  if (sex=="Male")
  { 
    for (i=0; i<3; i++)
	  {
	    res[i]=Math.round(male[x]+(w*male[x+1])+(w*w*male[x+2]));
	    x = x+3;
      }
  }
  else
  {
	for (i=0; i<3; i++)
	  {
	    res[i]=Math.round(female[x]+(w*female[x+1])+(w*w*female[x+2]));
	    x = x+3;
      }
  }
  
  document.norms.nw1.value = res[0];
  document.norms.nw2.value = Math.round(res[0]/2.205);
  document.norms.ew1.value = res[1];
  document.norms.ew2.value = Math.round(res[1]/2.205);
  document.norms.aw1.value = res[2];
  document.norms.aw2.value = Math.round(res[2]/2.205);
}

function valclear()
{
 document.norms.nw1.value = "";
 document.norms.nw2.value = "";
 document.norms.ew1.value = "";
 document.norms.ew2.value = "";
 document.norms.aw1.value = "";
 document.norms.aw2.value = "";
}