// Script by Bjarne Duus
// http://www.fiduusen.dk ***

function FraToTil() { 
	if (msieversion()) {
		if (window.document.getElementById('TilDato').value == '')  {	
			window.document.getElementById('TilDato').value = window.document.getElementById('FraDato').value;
 		}
	}
	else {
		if (window.document.kalender.TilDato.value == '')  {	
			window.document.kalender.TilDato.value = window.document.kalender.FraDato.value;
		}
	}
}

function ShowKalender(felt,fra,til) {
var strLinkTo = 'kalender-popup.asp?target=' + felt;
	if (ShowKalender.arguments.length >= 2) {
		strLinkTo += '&fra=' + fra + '&til=' + til;
	}
	window.open(strLinkTo, 'kalender', 'HEIGHT=180,WIDTH=260,toolbar=no,statusbar=no,menubar=no,resizable=yes,scrollbars=no');
}

var DOMModel;
function SetDOMModel(form) {
	if (msieversion()) { 
		DOMModel = 'document.all.';
	}
	else { 
		DOMModel = 'document.' + form + '.';
	}
}  

function msieversion(){
	
	// return Microsoft Internet Explorer (major) version number, or 0 for others.
	// This function works by finding the "MSIE " string and extracting the version number
	// following the space, up to the decimal point for the minor version, which is ignored.
    
    var ua = window.navigator.userAgent;
    var msie = ua.indexOf ( "MSIE " );
    if ( msie > 0 )        // is Microsoft Internet Explorer; return version number
        return parseInt ( ua.substring ( msie+5, ua.indexOf ( ".", msie ) ) );
    else
        return 0;  // is other browser
}