function showtab(which) {
	activetab(which);
	activepanel(which);
}

function disAble(){
    document.form1.checkbox22.disabled=
    (document.form1.checkbox2.checked==0);
  }

function activetab(which) {
	alltabs_off();
	idref = "t_" + which;
	if (document.getElementById(idref)) { document.getElementById(idref).className = 'active'; }
	
}
function activepanel(which) {
	allpanels_off();
	if (document.getElementById(which)) { document.getElementById(which).style.display = 'block'; }
	if (which == 'desc') {
		if (document.getElementById('downloads')) { document.getElementById('downloads').style.display = 'block'; }
	} else {
		if (document.getElementById('downloads')) { document.getElementById('downloads').style.display = 'none'; }
	}
}
function alltabs_off() {
	if (document.getElementById('t_desc')) { document.getElementById('t_desc').className = 'off'; }
	if (document.getElementById('t_bene')) { document.getElementById('t_bene').className = 'off'; }
	if (document.getElementById('t_apps')) { document.getElementById('t_apps').className = 'off'; }
	if (document.getElementById('t_spec')) { document.getElementById('t_spec').className = 'off'; }
	if (document.getElementById('t_build')) { document.getElementById('t_build').className = 'off'; }
	if (document.getElementById('t_dload')) { document.getElementById('t_dload').className = 'off'; }
}

function allpanels_off() {
	if (document.getElementById('desc')) { document.getElementById('desc').style.display = 'none'; }
	if (document.getElementById('bene')) { document.getElementById('bene').style.display = 'none'; }
	if (document.getElementById('apps')) { document.getElementById('apps').style.display = 'none'; }
	if (document.getElementById('spec')) { document.getElementById('spec').style.display = 'none'; }
	if (document.getElementById('build')) { document.getElementById('build').style.display = 'none'; }
	if (document.getElementById('dload')) { document.getElementById('dload').style.display = 'none'; }
}
// These to switch the application panel jpegs  - and the styles for activenav
function showapp(image, which) {
	document.getElementById("appimage").setAttribute("src", image);
	navref = "appnav" + which;
	appnav(navref);
}
function appnav(which) {
	appnav_off();
	if (document.getElementById(which)) { document.getElementById(which).className = 'activeapp'; }
}
function appnav_off() {
	if (document.getElementById('appnav1')) { document.getElementById('appnav1').className = 'off'; }
	if (document.getElementById('appnav2')) { document.getElementById('appnav2').className = 'off'; }
	if (document.getElementById('appnav3')) { document.getElementById('appnav3').className = 'off'; }
	if (document.getElementById('appnav4')) { document.getElementById('appnav4').className = 'off'; }
	if (document.getElementById('appnav5')) { document.getElementById('appnav5').className = 'off'; }
	if (document.getElementById('appnav6')) { document.getElementById('appnav6').className = 'off'; }
}

function launchviewer(url) {
	newWin = window.open(url,"viewimage", "toolbar=no,menubar=no,width=500,height=450,resizable=no,scrollbars=no");
	newWin.focus();
}

function pophelp(url) {
	newWin = window.open(url,"viewimage", "toolbar=no,menubar=no,width=350,height=450,resizable=no,scrollbars=yes");
	newWin.focus();
}

function pophelp_doc(url) {
	newWin = window.open(url,"viewimage", "toolbar=no,menubar=no,width=1000,height=1000,resizable=yes,scrollbars=yes");
	newWin.focus();
}