// custom - adrian
function testdigit(s){
	for(i=0;i<s.length;i++ ) {
		var c = s.charAt(i);
		if(!(isDigit(c))){
			return false;
		}
	} 
	return true;
}

function isDigit (c){
	return ((c >= "0") && (c <= "9"));
} 

function creditno(CardNumber){
	var no_digit = CardNumber.length;
	var oddoeven = no_digit & 1;
	var sum = 0;
	for (var count = 0; count < no_digit; count++) {
		var digit = parseInt(CardNumber.charAt(count));
		if (!((count & 1) ^ oddoeven)) {
			digit *= 2;
			if (digit > 9)
				digit -= 9;
		}
		sum += digit;
	}
	if (sum % 10 == 0)
		return true;
	else
		return false;
}

function checkEnter(e, functionStr){  
    var characterCode;  
    if(e && e.which){  
        e = e
        characterCode = e.which  
       }
    else{
        e = event
        characterCode = e.keyCode  
    }
    if(characterCode == 13){  
           eval(functionStr);
           return false;
    }
}

function openpopup(url,width,height,left,top)
{
	window.open(url, 'popup', 'toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=no, resizable=yes, width='+width+', height='+height+', left='+left+', top='+top)
}

function itemSelected(dropdown)
{
	if (dropdown.options.length > 0)
	{
		for (i=0;i<dropdown.options.length;i++)
		{
			if (dropdown.options[i].selected)
			{
				return true;
			}
		}
	}

	return false;
}

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);
	return (((sign)?'':'-') + num + '.' + cents);
}

function preloadImages_old() { //v2.0

  if (document.images) {

    var imgFiles = preloadImages.arguments;

    if (document.preloadArray==null) document.preloadArray = new Array();

    var i = document.preloadArray.length;

    with (document) for (var j=0; j<imgFiles.length; j++) if (imgFiles[j].charAt(0)!="#"){

      preloadArray[i] = new Image;

      preloadArray[i++].src = imgFiles[j];

  } }

}

function swapImgRestore() { //v2.0

  if (document.swapImgData != null)

    for (var i=0; i<(document.swapImgData.length-1); i+=2)

      document.swapImgData[i].src = document.swapImgData[i+1];

}

function swapImage() { //v2.0

  var i,j=0,objStr,obj,swapArray=new Array,oldArray=document.swapImgData;

  for (i=0; i < (swapImage.arguments.length-2); i+=3) {

    objStr = swapImage.arguments[(navigator.appName == 'Netscape')?i:i+1];

    if ((objStr.indexOf('document.layers[')==0 && document.layers==null) ||

        (objStr.indexOf('document.all[')   ==0 && document.all   ==null))

      objStr = 'document'+objStr.substring(objStr.lastIndexOf('.'),objStr.length);

    obj = eval(objStr);

    if (obj != null) {

      swapArray[j++] = obj;

      swapArray[j++] = (oldArray==null || oldArray[j-1]!=obj)?obj.src:oldArray[j];

      obj.src = swapImage.arguments[i+2];

  } }

  document.swapImgData = swapArray; //used for restore

}



var preloadFlag = false;
function preloadImages() {
	if (document.images) {
	pre_btn_new_03_ninja_on = newImage('images/bottom/btn_new_03_ninja_on.gif');
		pre_btn_new_03_ninja_on = newImage('images/bottom/btn_new_03_ninja_on.gif');
		pre_btn_new_04_sumo_on = newImage('images/bottom/btn_new_04_sumo_on.gif');
		pre_btn_new_05_match_on = newImage('images/bottom/btn_new_05_match_on.gif');
		pre_btn_new_01_max_on = newImage('images/bottom/btn_new_01_max_on.gif');
		preloadFlag = true;
	}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}


/* drop down list functions for moving/swapping/etc */
function swapOptions(obj,i,j) {
	var o = obj.options;
	var i_selected = o[i].selected;
	var j_selected = o[j].selected;
	var temp = new Option(o[i].text, o[i].value, o[i].defaultSelected, o[i].selected);
	var temp2= new Option(o[j].text, o[j].value, o[j].defaultSelected, o[j].selected);
	o[i] = temp2;
	o[j] = temp;
	o[i].selected = j_selected;
	o[j].selected = i_selected;
	}

function moveOptionUp(obj) {
	for (i=0; i<obj.options.length; i++) {
		if (obj.options[i].selected) {
			if (i != 0 && !obj.options[i-1].selected) {
				swapOptions(obj,i,i-1);
				obj.options[i-1].selected = true;
				}
			}
		}
	}

function moveOptionDown(obj) {
	for (i=obj.options.length-1; i>=0; i--) {
		if (obj.options[i].selected) {
			if (i != (obj.options.length-1) && ! obj.options[i+1].selected) {
				swapOptions(obj,i,i+1);
				obj.options[i+1].selected = true;
				}
			}
		}
	}