/*
	Copyright David Trewern Design         :: www.dtdesign.com ::
	Unauthorised modification / use is a criminal offence, and
	will be prosecuted to the fullest extent permitted by law.
	All Rights Reserved
*/

NAVarr = new Array("blah1", "blah2", "blah3");
if (document.images) {
	for (var NAVitem in NAVarr) { 
		 for (var NAVicount=0; NAVicount < 2; NAVicount++) { 
				eval("b" + NAVarr[NAVitem] + NAVicount + " = new Image()");
				eval("b" + NAVarr[NAVitem] + NAVicount + ".src = 'assets/swap_" + NAVarr[NAVitem] + "_" + NAVicount + ".gif'");
		 } 
	} 
}

function BturnOn(imageName) {
	if (document.images) { document [imageName].src = eval("b" +imageName + "1.src");   }
}

function BturnOff(imageName) {
	if (document.images) { document [imageName].src = eval("b" + imageName + "0.src");   }
}

function imgPopup(path) {
	if (path) {
		window.open("utils_imagepopup.aspx?path=" + path, "popup", "width=400, height=300, toolbar=no, status=no, scrollbars=yes, resizable=yes");
	}
}



function FormatNumber(num,decimalNum,bolLeadingZero,bolParens,bolCommas)
/**********************************************************************
	IN:
		NUM - the number to format
		decimalNum - the number of decimal places to format the number to
		bolLeadingZero - true / false - display a leading zero for
										numbers between -1 and 1
		bolParens - true / false - use parenthesis around negative numbers
		bolCommas - put commas as number separators.
 
	RETVAL:
		The formatted number!
 **********************************************************************/
{ 
        if (isNaN(parseInt(num))) return "NaN";

	var tmpNum = num;
	var iSign = num < 0 ? -1 : 1;		// Get sign of number
	
	// Adjust number so only the specified number of numbers after
	// the decimal point are shown.
	tmpNum *= Math.pow(10,decimalNum);
	tmpNum = Math.round(Math.abs(tmpNum))
	tmpNum /= Math.pow(10,decimalNum);
	tmpNum *= iSign;					// Readjust for sign
	
	
	// Create a string object to do our formatting on
	var tmpNumStr = new String(tmpNum);

	// See if we need to strip out the leading zero or not.
	if (!bolLeadingZero && num < 1 && num > -1 && num != 0)
		if (num > 0)
			tmpNumStr = tmpNumStr.substring(1,tmpNumStr.length);
		else
			tmpNumStr = "-" + tmpNumStr.substring(2,tmpNumStr.length);
		
	// See if we need to put in the commas
	if (bolCommas && (num >= 1000 || num <= -1000)) {
		var iStart = tmpNumStr.indexOf(".");
		if (iStart < 0)
			iStart = tmpNumStr.length;

		iStart -= 3;
		while (iStart >= 1) {
			tmpNumStr = tmpNumStr.substring(0,iStart) + "," + tmpNumStr.substring(iStart,tmpNumStr.length)
			iStart -= 3;
		}		
	}

	// See if we need to use parenthesis
	if (bolParens && num < 0)
		tmpNumStr = "(" + tmpNumStr.substring(1,tmpNumStr.length) + ")";

	return tmpNumStr;		// Return our formatted string!
}


function objVal(id, Val) {
	var el = document.getElementById(id);

	if (el) {
		if (Val != "")
			el.value = Val
		else
			return el.value;
	}

}

function calcTotal(TotalBox, ValueBoxes) {
	var runningTotal;
	runningTotal = 0;

	var arrValueBoxes = ValueBoxes.split(",");

	for (var i=0; i < arrValueBoxes.length; i++) {
		var tempVal = objVal(arrValueBoxes[i], "");

		if (tempVal != "") {
			if (!isNaN(tempVal)) runningTotal += parseFloat(tempVal);
		}

	}

	if (runningTotal == 0)
		runningTotal = ""
	else
		runningTotal = "$" + FormatNumber(runningTotal, 2, true, false, true);

	objVal(TotalBox, runningTotal);

}