<!--

function IsNumeric(sText)
{
   var ValidChars = "0123456789.";
   var IsNumber=true;
   var Char;

 
   for (i = 0; i < sText.length && IsNumber == true; i++) 
      { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
         {
         IsNumber = false;
         }
      }
   return IsNumber;
   
   }

function IsEmpty(aTextField) {
  var IsBlank=false;

   if ((aTextField.length==0) ||(aTextField==null)) {
      IsBlank =  true;
   }   
   return IsBlank;
}
function CalculateOrderTotal(frm) {
	var order_total = 0
  
    // Run through all the form fields
    for (var i=0; i < frm.elements.length; ++i) {

        // Get the current field
        form_field = frm.elements[i]

        // Get the field's name
        form_name = form_field.name

		if ((form_field.tagName == "INPUT")  && (form_name.indexOf("[]") != -1) ) 
		{
			if (form_field.value.lastIndexOf("$") != -1) {
				item_price = parseFloat(form_field.value.substring(form_field.value.lastIndexOf("$") + 1));
			} else {
				item_price = parseFloat(form_field.value.substring(form_field.value.lastIndexOf("$") + 2))
			}
			
			item_quantity = 0;
			switch (form_field.type)
			{
			case "checkbox":
			  	if (form_field.checked == true)
			  	{
			  		item_quantity = 1;
			  	}
  				break;
			
			default:
				if (IsEmpty(form_field.value))
				{
					item_quantity = 0;
				} else {	
            		// Get the quantity
            		item_quantity = parseInt(form_field.value);
            	}
			}
            
            if (isNaN(item_quantity))
            	{item_quantity = 1;}
            
            if (!IsNumeric(item_quantity))
            	{item_quantity = 1;}

            // Update the order total
            if (item_quantity >= 0) {
                order_total += item_quantity * item_price
            }
            

        }
    }

    // Display the total rounded to two decimal places
    frm.TOTAL.value = round_decimals(order_total, 2)
	
}
function CalculateTotal(frm) {

    var order_total = 0

    // Run through all the form fields
    for (var i=0; i < frm.elements.length; ++i) {

        // Get the current field
        form_field = frm.elements[i]

        // Get the field's name
        form_name = form_field.name

        // Is it a "product" field?
        //if (form_name.substring(0,4) == "PROD") {
		if ((form_field.tagName == "INPUT")  && (form_name.indexOf("$") != -1) || (form_name.substring(0,4) == "PROD")) {
			
			if (form_name.indexOf("$") != -1) {
				item_price = parseFloat(form_name.substring(form_name.lastIndexOf("_") + 2));
			} else {
				item_price = parseFloat(form_name.substring(form_name.lastIndexOf("_") + 1));
			}

			//debugger;
 
			item_quantity = 0;
			switch (form_field.type)
			{
			case "checkbox":
			  	if (form_field.checked == true)
			  	{
			  		item_quantity = 1;
			  	}
  				break;
			
			default:
				if (IsEmpty(form_field.value))
				{
					item_quantity = 0;
				} else {	
            		// Get the quantity
            		item_quantity = parseInt(form_field.value);
            	}
			}
            
            if (isNaN(item_quantity))
            	{item_quantity = 1;}
            
            if (!IsNumeric(item_quantity))
            	{item_quantity = 1;}

            // Update the order total
            if (item_quantity >= 0) {
                order_total += item_quantity * item_price
            }
        }
    }

    // Display the total rounded to two decimal places
    frm.TOTAL.value = round_decimals(order_total, 2)
}

function round_decimals(original_number, decimals) {
    var result1 = original_number * Math.pow(10, decimals)
    var result2 = Math.round(result1)
    var result3 = result2 / Math.pow(10, decimals)
    return pad_with_zeros(result3, decimals)
}

function pad_with_zeros(rounded_value, decimal_places) {

    // Convert the number to a string
    var value_string = rounded_value.toString()
    
    // Locate the decimal point
    var decimal_location = value_string.indexOf(".")

    // Is there a decimal point?
    if (decimal_location == -1) {
        
        // If no, then all decimal places will be padded with 0s
        decimal_part_length = 0
        
        // If decimal_places is greater than zero, tack on a decimal point
        value_string += decimal_places > 0 ? "." : ""
    }
    else {

        // If yes, then only the extra decimal places will be padded with 0s
        decimal_part_length = value_string.length - decimal_location - 1
    }
    
    // Calculate the number of decimal places that need to be padded with 0s
    var pad_total = decimal_places - decimal_part_length
    
    if (pad_total > 0) {
        
        // Pad the string with 0s
        for (var counter = 1; counter <= pad_total; counter++) 
            value_string += "0"
        }
    return value_string
}


//-->