function stripNonNumeric( str ){
  str += '';
  var rgx = /^\d|\.|-$/;
  var out = '';
  for( var i = 0; i < str.length; i++ ){
    if( rgx.test( str.charAt(i) ) ){
      if( !( ( str.charAt(i) == '.' && out.indexOf( '.' ) != -1 ) ||
             ( str.charAt(i) == '-' && out.length != 0 ) ) ){
        out += str.charAt(i);
      }
    }
  }
  return out;
}
function addCommas(nStr)
{
	nStr += '';
	x = nStr.split('.');
	x1 = x[0];
	x2 = x.length > 1 ? '.' + x[1] : '';
	var rgx = /(\d+)(\d{3})/;
	while (rgx.test(x1)) {
		x1 = x1.replace(rgx, '$1' + ',' + '$2');
	}
	return x1 + x2;
}
function leed(form) {
var sqft = stripNonNumeric(form.sqft.value);
var price = stripNonNumeric(form.price.value)/1000;
var product = form.product.value;
var mr4 = 0.186;
var mr5 = 0.9859;
var bsf = 6.74;
var usf = 3;
var psf = 4.5;
var clayee = 6000;
var ulayee = 14900;
var clayco2 = 0.9;
var ulayco2 = 2.23;
var fabee = 1000;
var uabee = 2500;
var fabco2 = 0.1;
var uabco2 = 0.25;
var concee = 1500;
var concco2 = 0.86;
var fapee = 1000;
var fapco2 = 0.1;
if ((product == 'Modular CalStar Brick ')) {
var units = sqft*bsf;
var cost = units*price;
var totalee = (units*clayee)-(units*fabee);
var totalco2 = (units*clayco2)-(units*fabco2);
var totalmr4 = cost*mr4;
var totalmr5 = cost*mr5;
} else if ((product == 'Utility CalStar Brick ')) {
var units = sqft*usf;
var cost = units*price;
var totalee = (units*ulayee)-(units*uabee);
var totalco2 = (units*ulayco2)-(units*uabco2);
var totalmr4 = cost*mr4;
var totalmr5 = cost*mr5;
} else {
var units = sqft*psf;
var cost = units*price;
var totalee = (units*concee)-(units*fapee);
var totalco2 = (units*concco2)-(units*fapco2);
var totalmr4 = cost*mr4;var totalmr5 = cost*mr5;
}
var mr4 = totalmr4.toFixed(2);
var mr5 = totalmr5.toFixed(2);
var ee = totalee.toFixed(0);
var co2 = totalco2.toFixed(1);
form.newprice.value = addCommas(price*1000);
form.one.value = addCommas(mr4);
form.two.value = addCommas(mr5);
form.three.value = addCommas(ee);
form.four.value = addCommas(co2);
form.tester.value = 'HELLO';
return false;
}