if (document.images)
{
pic100= new Image(205,175);
pic100.src="Pic_100.jpg";
pic103= new Image(205,175);
pic103.src="Pic_103.jpg";
pic105= new Image(205,175);
pic105.src="Pic_105.jpg";
pic110= new Image(205,175);
pic110.src="Pic_110.jpg";
pic115= new Image(205,175);
pic115.src="Pic_115.jpg";
pic120= new Image(205,175);
pic120.src="Pic_120.jpg";
pic124= new Image(205,175);
pic124.src="Pic_124.jpg";
pic125= new Image(205,175);
pic125.src="Pic_125.jpg";
pic130= new Image(205,175);
pic130.src="Pic_130.jpg";
pic135= new Image(205,175);
pic135.src="Pic_135.jpg";
pic140= new Image(205,175);
pic140.src="Pic_140.jpg";
pic145= new Image(205,175);
pic145.src="Pic_145.jpg";
pic150= new Image(205,175);
pic150.src="Pic_150.jpg";
pic155= new Image(205,175);
pic155.src="Pic_155.jpg";
pic160= new Image(205,175);
pic160.src="Pic_160.jpg";
pic165= new Image(205,175);
pic165.src="Pic_165.jpg";
pic166= new Image(205,175);
pic166.src="Pic_166.jpg";
pic167= new Image(205,175);
pic167.src="Pic_167.jpg";
pic168= new Image(205,175);
pic168.src="Pic_168.jpg";
pic169= new Image(205,175);
pic169.src="Pic_169.jpg";
pic170= new Image(205,175);
pic170.src="Pic_170.jpg";
pic175= new Image(205,175);
pic175.src="Pic_175.jpg";
pic176= new Image(205,175);
pic176.src="Pic_176.jpg";
pic177= new Image(205,175);
pic177.src="Pic_177.jpg";
pic300= new Image(205,175);
pic300.src="Pic_300.jpg";
pic305= new Image(205,175);
pic305.src="Pic_305.jpg";
pic310= new Image(205,175);
pic310.src="Pic_310.jpg";
pic315= new Image(205,175);
pic315.src="Pic_315.jpg";
pic320= new Image(205,175);
pic320.src="Pic_320.jpg";
pic322= new Image(205,175);
pic322.src="Pic_322.jpg";
pic325= new Image(205,175);
pic325.src="Pic_325.jpg";
pic327= new Image(205,175);
pic327.src="Pic_327.jpg";
pic330= new Image(205,175);
pic330.src="Pic_330.jpg";
}

function isNumeric(str)
{
  if (str.length > 4)
  {
        alert('Tire Diameter input XX.X');
       	document.Trans_Gearing.Tire_Diameter.focus()
        return false;
    }
  for (var i=0; i < str.length; i++)
  {
    var ch = str.substring(i, i+1)
    if( ch == "." )   //decimal numbes allowed
       continue;
       if( ch < "0" || ch > "9" || str.length == null)
	{
        alert('Tire Diameter not Numeric');
     	document.Trans_Gearing.Tire_Diameter.focus()
        return false;
        }
  }
  return true
}

function calctire(form, section, aspect, wheel)
  {
    form.Tire_Diameter.value = parseInt(((aspect * section / 100 * 2 + (wheel * 25.4)) / 25.41) * 10) / 10;
  }

// The following code should be stored in the HTML head section
function disp_image()
   {
   var w = document.Trans_Gearing.Transmission.selectedIndex;
//   alert(w)
   var selected_text = document.Trans_Gearing.Transmission.options[w].value;
//   alert(selected_text)
   srx=eval("pic" + selected_text + ".src")
   document.the_image.src=srx;
//   document.Bday_Prod_Form.Pass_Year.value = selected_text;
//   srx=eval(selected_text + " Production Data");
//   document.Bday_Prod_Form.Disp_Year.value = selected_text + " Production Data"
   }

function no_copy()
{
alert("Thanks for looking");
}