function newImage(arg) 
{
	if (document.images) 
	{
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() 
{
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) 
		{
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() 
{
	if (document.images) 
	{
		index_06_over = newImage("images/index_06-over.gif");
		index_07_over = newImage("images/index_07-over.gif");
		index_09_over = newImage("images/index_09-over.gif");
		preloadFlag = true;
	}
}

function MM_openBrWindow(theURL,winName,features) 
{ 
	//v2.0
	var win_position = ',left=300,top=200,screenX=300,screenY=200';
	var newWindow = window.open(theURL,winName,features+win_position);
	newWindow.focus();
}

function formatCurrency(num) 
{
	num = num.toString().replace(/\$|\,/g,'');
	if(isNaN(num))
		num = "0";
		
	sign = (num == (num = Math.abs(num)));
	
	num = Math.floor(num*100+0.50000000001);
	
	cents = num%100;
	
	num = Math.floor(num/100).toString();
	
	if(cents<10)
		cents = "0" + cents;
		
	for (var i = 0; i < Math.floor((num.length-(1+i))/3); i++)
		num = num.substring(0,num.length-(4*i+3))+','+ num.substring(num.length-(4*i+3));
		
	return (((sign)?'':'-') + '$' + num + '.' + cents);
}

function mask(num){
	var checkOK = "0123456789.";
	var checkStr = num;
	var sRet = "";
	   
	for (i = 0;  i < checkStr.length;  i++)
	{
		ch = checkStr.charAt(i);
		
		for (j = 0;  j < checkOK.length;  j++)
		{
			if (ch == checkOK.charAt(j)) 
			{
				sRet = sRet + ch;
			}
		}
	}

	return sRet;

}