:-o help needed javascript newbies!

**dominic** · 03-25-2009 09:59 AM

im creating a website and i have input fields which the user will enter numbers between 0-250. i need to create something which will totalise the numbers they input without having to refresh the page.

any help would be greatly appreciated.

x

**TheBearMay** · 03-25-2009 10:22 AM

One way:

HTML Code:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>Test</title>
<script type="text/javascript">
function runningTotal(val) {
	val=parseInt(val);
	rtotal=document.getElementById("total");
	if (val < 0 || val > 250) {
		val = 0;
		alert("Invalid Number");
	}
	rtotal.value = parseInt(rtotal.value)+val;	
}

</script>
</head>
<body>
<input type="text" onchange="runningTotal(this.value);this.value=''" />
<input type="text" disabled="disabled" id="total" value="0"/>
</body> 
</html>

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