Selling a cloth in 20cm lengths with the user inputing the length in metres.
The following will allow a length to be input in metres (like 1.23 metres) and will round it up to the next 20cm.
The actual length orderd in metres and the number of 20cm units will be displayed in the Other Info Prompt.




Put the following code into Act_Primary.html (just above the </HEAD> tag).




<script language=JavaScript>
<!-- 
function formfield(fname){		// look through all forms 'till one containing field "fname"
  var df = document.forms;		// simplified version - only return object fname
  var i = df.length - 1;
  for ( var j = 0; j <= i; j++ )
    {
    var k = df[j].length - 1; 
    for ( var l = 0; l <= k; l++ )
      {
      if ( df[j].elements[l].name == (fname) ) 
        {
        return df[j].elements[l];
        }
      }
    }
  alert('Cannot find field ' + fname);  // shouldn't happen...
  return false;
}
function fixnum(prodref,inputval){
  var val = inputval - 0;   			// make a number
  if ( ( val <= 0 ) || isNaN(val) ) 
    {
    alert('Illegal value');
    val = 0;
    }
  var intval = Math.ceil(val * 5); 		// number of 20cm units rounded up
  val = intval / 5;                		// round back to decimal value to nearest 20 cm
  formfield('Q_' + prodref).value = intval;  	// put integer value in Actinic's Quantity field
  formfield('JV-' + prodref).value = val;  	// put rounded value in Visible Quantity field
  formfield('O_' + prodref).value = val + ' Metres - (' + intval + ' x 20cm Units)'; // put values into Other Info field
}
// -->
</script> 










Save the following chunk of code as Cloth_ProductLine.html



<!-- Cloth_ProductLine HTML begin -->
<!-- Insert HTML for the top of the individual product -->
NETQUOTEVAR:INCLUDE Act_ProductSeparator.html
NETQUOTEVAR:ENDSEPARATOR
NETQUOTEVAR:PRODUCTFORMBEGIN
  <tr>
    <td rowspan="2" valign="TOP" align="CENTER"> NETQUOTEVAR:TEMPLATEBEGINXML NETQUOTEVAR:PRODUCTIMAGE </td>
    <td valign="TOP" align="LEFT" colspan="2">  
      <a name="NETQUOTEVAR:PRODUCTANCHOR"><span class="actregular"><b>NETQUOTEVAR:PRODUCTNAME</b></span></a>
      <span class="actxsmall">NETQUOTEVAR:PRODUCTREF <br>
      NETQUOTEVAR:PRODUCTDESCRIPTION&nbsp;NETQUOTEVAR:EXTINFOLINK</span>NETQUOTEVAR:EXTINFOBUTTON
      <br>
      <span class="actxsmall">NETQUOTEVAR:PRODUCTBEGINLINKNETQUOTEVAR:PRODUCTLINKTEXTNETQUOTEVAR:PRODUCTENDLINK
      NETQUOTEVAR:PRICEEXPLANATION </span><br>
      <b>NETQUOTEVAR:PRODUCTPRICE</b>
      <!-- <span class="actxsmall">NETQUOTEVAR:OTHERINFOPROMPT </span> -->
      <span class="actxsmall">NETQUOTEVAR:DATEPROMPT </span>
    </td>
  </tr>
  <tr>
    <td align="LEFT" colspan="2"><span class="actxsmall">
			NETQUOTEVAR:CARTERRORXML<!-- NETQUOTEVAR:PRODUCTQUANTITY-->
<input type=hidden name="Q_NETQUOTEVAR:PRODUCTREFERENCE" value="0">
<input type=hidden name="O_NETQUOTEVAR:PRODUCTREFERENCE" value="Length 0.0">
Enter length in Metres (e.g. 1.2) <input type=text size=4 name="JV-NETQUOTEVAR:PRODUCTREFERENCE" value="0" onchange="fixnum('NETQUOTEVAR:PRODUCTREFERENCE',this.value)">
<br>
			<Actinic:ACTIONS>NETQUOTEVAR:ADDTOCARTBUTTON</Actinic:ACTIONS>
		    </span>
	NETQUOTEVAR:TEMPLATEENDXML
       </td>
  </tr>
NETQUOTEVAR:PRODUCTFORMEND
NETQUOTEVAR:NEXT
<!-- Insert HTML for the bottom of the individual product -->
<!-- Cloth_ProductLine HTML end -->





Now in your product details:

Select Cloth_ProductLine.html as the product template.
Set the product price to be correct for 20cm of fabric.
Set the Other Info Prompt to be "Length"
Set the Price Prompt to be "Price per 20cm:".

Now when the customer enters a length it will be rounded to the next 20cm and the correct number of 20cm units will be added to the cart.
In addition the Otheer Info Prompt will be set to contain the actual number of metres of cloth ordered and number of 20cm units.