done_calc = false;
	
	//preload over bitton
	img1 = new Image(); img1.src='http://www.alligata.co.uk/skins/CCP5XIMPORT/media/arrow-over.png';
	
	function calc(val,factor,putin) { 
	if (isNaN(val)) {
		//alert("val is not a number");
		val = 0;
	}
	if (val=="") {
		//alert("val is an empty string");
		val = 0;
	}
	results = val * factor;
	results = twoDecimalPlace(results);
	evalstr = "document.cform."+putin+ ".value = ";
	evalstr = evalstr + results;
	eval(evalstr);
	done_calc = true;
}

function twoDecimalPlace(n)	{
	return Math.round(n*100)/100;
}
function getRef(obj) {
	obj = document.getElementById(obj);
	return obj;
}
function rollOver(eyeD) {
	getRef(eyeD).src = 'http://www.alligata.co.uk/skins/CCP5XIMPORT/media/arrow-over.png';
}
function rollOut(eyeD) {
	getRef(eyeD).src = 'http://www.alligata.co.uk/skins/CCP5XIMPORT/media/arrow.png';
}
number_of_rows = 5;
function showAnswers(obj) {
	//if (done_calc == true) {
	//for (i=1; i<=number_of_rows; i++) {
		//getRef(i + 'a').className = 'answerhid';
		//getRef(i + 'b').className = 'answerhid';
	//}
		getRef(obj + 'a').className = 'answershow';
		getRef(obj + 'b').className = 'answershow';
//}
}