function ShowFile(Url){
    // Functie voor openen van wizard1

    var hor =  screen.width;
    var vert = screen.height;

    hor = parseInt(hor);
    hor = hor - 520;
    hor = hor / 2;
    vert = vert - 400;
    vert = vert / 2;

    win1 = window.open(Url,"ShowFile","width=510,height=390,status=yes,toolbar=no,menubar=yes,resizable=yes,scrollbars=auto,top="+vert+"px,left="+hor+"px");
    win1.creator=self;

}

function ShowPhoto(Url){
    // Functie voor openen van wizard1

    var hor =  screen.width;
    var vert = screen.height;

    hor = parseInt(hor);
    hor = hor - 530;
    hor = hor / 2;
    vert = vert - 405;
    vert = vert / 2;

    win1 = window.open(Url,"ShowFile","width=520,height=395,status=no,toolbar=no,menubar=no,resizable=yes,scrollbars=yes,top="+vert+"px,left="+hor+"px");
    win1.creator=self;

}

function ShowPrintVersion(Url){
    // Functie voor openen van wizard1

    var hor =  screen.width;
    var vert = screen.height;

    hor = parseInt(hor);
    hor = hor - 560;
    hor = hor / 2;
    vert = vert - 400;
    vert = vert / 2;

    win2 = window.open(Url,"ShowFile","width=550,height=390,status=yes,toolbar=no,menubar=yes,resizable=yes,scrollbars=yes,top="+vert+"px,left="+hor+"px");
    win2.creator=self;
}


// Specifiek voor TyBout/4Human

function OnlyNum2(event) {
	if (event.keyCode < 8 || (event.keyCode > 8 && event.keyCode < 45) || event.keyCode > 57 && event.keyCode < 96 || event.keyCode > 105 ) {		
		return false;
	} else {
		return true;
	}
}

function OnlyNum(event) {
	if (event.keyCode < 45 || event.keyCode > 57  && event.keyCode < 96 || event.keyCode > 105 ) event.returnValue = false;
}



function TussenDing(event) {
	if (OnlyNum2(event)){
		Bereken();
	}

}

function writehtml (text, idtag) {
		var newText = document.createTextNode(text);
		var OldText = document.getElementById(idtag).childNodes[0];
		document.getElementById(idtag).replaceChild(newText, OldText);
}


function Bereken() {
	var f = document.forms[0];
	var Som = f.BookAantal.value * Price;
	writehtml(Som, "TotalPriceDiv");	
}

function PageChangeHandler() {
	var f = document.forms[0];
//	alert(f.elements[0].checked);	
	alert(f.elements.length);	
}

function ShowPopUp(Url){

    var hor =  screen.width;
    var vert = screen.height;

    hor = parseInt(hor);
    hor = hor - 560;
    hor = hor / 2;
    vert = vert - 400;
    vert = vert / 2;

    win2 = window.open(Url,"Popup","width=375,height=295,status=no,toolbar=no,menubar=no,resizable=no,scrollbars=yes,top="+vert+"px,left="+hor+"px");
    win2.creator=self;
}