Simple question.

[tuckenator]

How do i add together the values of multiple text boxes and display the sum in another?

Cheers

 

[tuckenator]

sorry ppl, was in a rush, in html/java.

Cheers

 

[tuckenator]

Cheers for the advice, one more thing though...

function add(sectionNum, numBoxes) 
{

var sectionTotal = 0

for (i = 1; i <= numBoxes; i++)
{
var tBoxId = "g" + sectionNum + "a" + i;
// Uncomment to debug the section name
// alert(tBoxId);

var tBox = document.getElementById(tBoxId);
//alert(tBox.value);

sectionTotal = sectionTotal + Number(tBox.value);
}

// set the total for the section
var totalTxtBx = document.getElementById("total" + sectionNum);
totalTxtBx.value = sectionTotal;

}

<form id="Processor" name="Processor" method="post">
	<select id="Prochange" name="Plist"
	onchange="document.getElementById('g1a2').value=this[this.selectedIndex].value">
	<option>Select Processor...</option>
	<option value="70">3000+</option>
	<option value="90">3500+</option>
	<option value="120">3700+</option>
	</select><br />
	<input type="text" name="g1a2" id="g1a2" value="0" onKeyUp="javascript:add(1,8)"><br />
	<input type="reset" value="Clear" /><br />
</form>

	
£ <input type="text" name="g1a1" id="g1a1" value="0" onKeyUp="javascript:add(1,8)"><br/>
£ <input type="text" name="g1a3" id="g1a3" value="0" onKeyUp="javascript:add(1,8)"><br/>
£ <input type="text" name="g1a4" id="g1a4" value="0" onKeyUp="javascript:add(1,8)"><br/>
£ <input type="text" name="g1a5" id="g1a5" value="0" onKeyUp="javascript:add(1,8)"><br/>
£ <input type="text" name="g1a6" id="g1a6" value="0" onKeyUp="javascript:add(1,8)"><br/>
£ <input type="text" name="g1a7" id="g1a7" value="0" onKeyUp="javascript:add(1,8)"><br/>
£ <input type="text" name="g1a8" id="g1a8" value="0" onKeyUp="javascript:add(1,8)"><br/><br/>
<b>Total</b> - £ <input type="text" name="total1" id="total1" value="0" readOnly="true">

How would i go about getting the Total amount to change once the drop down list changed the value in one of the text fields? Currently the Total amount only changes when the text fields are typed into.

Cheers

 

[tuckenator]

Cheers for the info.