document.write('<script type=\"text/javascript\">');
document.write('  function comp_val(frm,w1,w2,x1,x2)');
document.write('    { ');
document.write('      var wt = frm.weight.value;');
document.write('      var slope = (x2-x1)/(w2-w1);');
document.write('      var c = ((x2+x1)/2)-(slope)*((w2+w1)/2);');
document.write('      var y = (slope*(wt)+c).toFixed(2);');

document.write('alert(y);');

document.write('      frm.l_limit.value=x1;');
document.write('      frm.u_limit.value=x2;');
document.write('      if (y<frm.l_limit.value)');
document.write('          {');
document.write('              frm.suggestval.value=frm.l_limit.value;');
document.write('          }');
document.write('      else  if (y>frm.u_limit.value)');
document.write('          {');
document.write('              frm.suggestval.value=frm.u_limit.value;');
document.write('          }');
document.write('      else ');
document.write('          {');
document.write('          frm.suggestval.value=(y);');
document.write('          }');
document.write('        
document.write('      frm.l_limit.value=frm.l_limit.value + \'&quot;\';');
document.write('      frm.u_limit.value=frm.u_limit.value + \'&quot;\';');
document.write('      frm.suggestval.value=frm.suggestval.value + \'&quot;\';');
document.write('    return;');
document.write('    }');
document.write('<\/script>');