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_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

function MM_goToURL() { //v3.0
  var i, args=MM_goToURL.arguments; document.MM_returnValue = false;
  for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
}

function YY_checkform() { //v4.65
//copyright (c)1998,2002 Yaromat.com
  var args = YY_checkform.arguments; var myDot=true; var myV=''; var myErr='';var addErr=false;var myReq;
  for (var i=1; i<args.length;i=i+4){
    if (args[i+1].charAt(0)=='#'){myReq=true; args[i+1]=args[i+1].substring(1);}else{myReq=false}
    var myObj = MM_findObj(args[i].replace(/\[\d+\]/ig,""));
    myV=myObj.value;
    if (myObj.type=='text'||myObj.type=='password'||myObj.type=='hidden'||myObj.type=='textarea'){
      if (myReq&&myObj.value.length==0){addErr=true}
      if ((myV.length>0)&&(args[i+2]==1)){ //fromto
        var myMa=args[i+1].split('_');if(isNaN(parseInt(myV))||myV<myMa[0]/1||myV > myMa[1]/1){addErr=true}
      } else if ((myV.length>0)&&(args[i+2]==2)){
          var rx=new RegExp("^[\\w\.=-]+@[\\w\\.-]+\\.[a-z]{2,4}$");if(!rx.test(myV))addErr=true;
      } else if ((myV.length>0)&&(args[i+2]==3)){ // date
        var myMa=args[i+1].split("#"); var myAt=myV.match(myMa[0]);
        if(myAt){
          var myD=(myAt[myMa[1]])?myAt[myMa[1]]:1; var myM=myAt[myMa[2]]-1; var myY=myAt[myMa[3]];
          var myDate=new Date(myY,myM,myD);
          if(myDate.getFullYear()!=myY||myDate.getDate()!=myD||myDate.getMonth()!=myM){addErr=true};
        }else{addErr=true}
      } else if ((myV.length>0)&&(args[i+2]==4)){ // time
        var myMa=args[i+1].split("#"); var myAt=myV.match(myMa[0]);if(!myAt){addErr=true}
      } else if (myV.length>0&&args[i+2]==5){ // check this 2
            var myObj1 = MM_findObj(args[i+1].replace(/\[\d+\]/ig,""));
            if(myObj1.length)myObj1=myObj1[args[i+1].replace(/(.*\[)|(\].*)/ig,"")];
            if(!myObj1.checked){addErr=true}
      } else if (myV.length>0&&args[i+2]==6){ // the same
            var myObj1 = MM_findObj(args[i+1]);
            if(myV!=myObj1.value){addErr=true}
      }
    } else
    if (!myObj.type&&myObj.length>0&&myObj[0].type=='radio'){
          var myTest = args[i].match(/(.*)\[(\d+)\].*/i);
          var myObj1=(myObj.length>1)?myObj[myTest[2]]:myObj;
      if (args[i+2]==1&&myObj1&&myObj1.checked&&MM_findObj(args[i+1]).value.length/1==0){addErr=true}
      if (args[i+2]==2){
        var myDot=false;
        for(var j=0;j<myObj.length;j++){myDot=myDot||myObj[j].checked}
        if(!myDot){myErr+='* ' +args[i+3]+'\n'}
      }
    } else if (myObj.type=='checkbox'){
      if(args[i+2]==1&&myObj.checked==false){addErr=true}
      if(args[i+2]==2&&myObj.checked&&MM_findObj(args[i+1]).value.length/1==0){addErr=true}
    } else if (myObj.type=='select-one'||myObj.type=='select-multiple'){
      if(args[i+2]==1&&myObj.selectedIndex/1==0){addErr=true}
    }else if (myObj.type=='textarea'){
      if(myV.length<args[i+1]){addErr=true}
    }
    if (addErr){myErr+='* '+args[i+3]+'\n'; addErr=false}
  }
  if (myErr!=''){alert(myErr)}
  document.MM_returnValue = (myErr=='');
}

function openPayment() {
	self.name='payopener';
	document.Form.submit();
}

function changeVariation() {
	if (variation_div.style.display == 'none') {
		variation_div.style.display = 'block';
	} else {
		variation_div.style.display = 'none';
	}
}

function changeWelNiet(itm) {
	if (document.orderform.wel_niet[itm].disabled == false) {
		document.orderform.wel_niet[itm].disabled = true;
		document.orderform.etiket[itm].disabled = true;
	} else {
		document.orderform.wel_niet[itm].disabled = false;
		document.orderform.etiket[itm].disabled = false;
	}
}

function endisableBet(itm) {
	if (itm == "mach") {
		document.orderform.mach_amount.disabled = false;
		document.orderform.mach_account.disabled = false;
		document.orderform.over_amount.disabled = true;
		document.orderform.over_amount.value = '';
	} else if (itm == "over") {
		document.orderform.mach_amount.disabled = true;
		document.orderform.mach_account.disabled = true;
		document.orderform.over_amount.disabled = false;
		document.orderform.mach_amount.value = '';
		document.orderform.mach_account.value = '';
	}
}

function endisableBilladdress() {
	if (document.orderform.bill_address.disabled == true) {
		document.orderform.bill_address.disabled = false;
	} else {
		document.orderform.bill_address.disabled = true;
		document.orderform.bill_address.value = '';
	}
}
function changeAmountVar() {
	var count = document.orderform.aantal_var.length;
	if (document.orderform.aantal_var[1].disabled == true) {
		for (var i=0;i<count;i++) {
			document.orderform.aantal_var[i].disabled = false;
		}
	} else {
		for (var i=0;i<count;i++) {
			document.orderform.aantal_var[i].value = '';
			document.orderform.aantal_var[i].disabled = true;
		}
	}
}
function isNumberKey(evt) {
	var charCode = (evt.which) ? evt.which : event.keyCode
	if (charCode > 31 && (charCode < 48 || charCode > 57)) return false;
	return true;
}
function round_decimals(original_number, decimals) {
    var result1 = original_number * Math.pow(10, decimals)
    var result2 = Math.round(result1)
    var result3 = result2 / Math.pow(10, decimals)
    return pad_with_zeros(result3, decimals)
}
function pad_with_zeros(rounded_value, decimal_places) {
    var value_string = rounded_value.toString()
    var decimal_location = value_string.indexOf(".")
    if (decimal_location == -1) {
        decimal_part_length = 0
		value_string += decimal_places > 0 ? "." : ""
    } else {
        decimal_part_length = value_string.length - decimal_location - 1
    }
    var pad_total = decimal_places - decimal_part_length
    if (pad_total > 0) {
        for (var counter = 1; counter <= pad_total; counter++) 
            value_string += "0"
        }
    return value_string
}


function changeTotal(amount,id,rows) {
	el = document.getElementById('total_'+id);
	el2 = document.getElementById('row_num_'+id);
	total = el2.value * amount;
	el.value = round_decimals(total,2);
	calculateTotal(rows);
}

function calculateTotal(rows) {
	var total=0;
	for (i=1;i<=rows;i++) {
		el = document.getElementById('quantity_'+i);
		el2 = document.getElementById('row_num_'+i);
		total += (el2.value * el.value);
	}
	document.getElementById('total_overall').value = round_decimals(total,2);
}