function PopupWindow(URL){
	MyWindow=window.open( "" + URL, "", "left=5,top=5,width=557,height=300,toolbar=no,location=no,status=no,menubar=no,scrollbars=yes,resizable=yes" );
    if(navigator.appName.indexOf("Netscape") != -1){
		if( bVersion > 2 ) {
			MyWindow.focus();
		}
	}

	if(navigator.appName.indexOf("Internet Explorer") != -1){
		if( bVersion > 2 ) {
			MyWindow.focus();
		}
	}
}

// Check VERSION
function version() {
      if (iversion != -1) return iversion;
        if(navigator.appName.indexOf("Netscape") != -1){
                if (navigator.userAgent.indexOf("Mozilla/2.0") != -1)
                        iversion = 2;
                else
                        if (navigator.userAgent.indexOf("Mozilla/3.0") != -1)
                                iversion = 3;

                       else
		                if (navigator.userAgent.indexOf("Mozilla/4") != -1)
                                        iversion = 4;
                                else
                                        iversion = 1;

        }  else {  // Not netscape.
                if(navigator.appName.indexOf("Internet Explorer") != -1){
                        if (navigator.userAgent.indexOf("Mozilla/4.0") != -1)
                                iversion = 4;
                        else
                                iversion = 1;

	                if (navigator.userAgent.indexOf("MSIE 5") != -1) {
				iversion = 5;
			}

                } else
                                iversion = 1;
        }

        return iversion;
}

var iversion    = -1;
var bVersion    = version();

function FrameCheck(ID, MyForm, verzekering)
{

	var objFrameMaat;
	objFrameMaat = document.getElementById('product' + ID);
	if(objFrameMaat.value != -1)
	{
		if(verzekering == 1){
			if(confirm('Wilt u uw fiets verzekeren?\nKlik op \'Ok\' om uw premie te bepalen.'))
			{
				MyForm.verzekeren.value='true';
			}else{
				MyForm.verzekeren.value='';
			}
		}
		return true;
	}else{
		alert('U heeft nog geen keuze gemaakt.');
		objFrameMaat.focus();
		return false;
	}
}