//Pop-up window openers
<!--

var Xfrq,Xrng,Xton,Xsad,Xspl,Xcon,Xacc, xA, xDiff, Brng3, Brng7, xStore, x2100, xHist;

function WinEx(h) {			//test whether window already open
    return (h && h.open && !h.closed );
}


function StorePop() {
    if (WinEx(Xfrq)) {
	xStore.focus();
    } else {
        xStore = window.open("Nostore.html","Store","width=375,height=425,scrollbars=yes,resizable=yes");
    }
}

function FrqPop() {
    if (WinEx(Xfrq)) {
	Xfrq.focus();
    } else {
        Xfrq = window.open("FreqPop2.html","Frq","width=500,height=450,scrollbars=yes,resizable=yes");
    }
}

function RangeExplan() {
    if (WinEx(Xrng)) {
	Xrng.focus();
    } else {
        Xrng = window.open("RangeExplan2.html","Rng","width=460,height=500,scrollbars=yes,resizable=yes");
    }
}

function ToneExplan() {
    if (WinEx(Xton)) {
	Xton.focus();
    } else {
        Xton = window.open("ToneExplan2.html","Tone","width=520,height=370,scrollbars=yes,resizable=yes");
    }
}

function AccBag() {
    if (WinEx(Xacc)) {
        Xacc.focus();
    } else {
        Xacc = window.open("AccBag2.html","Acc","width=480,height=380,scrollbars=yes,resizable=yes");
    }
}

function SaddlePop() {
    if (WinEx(Xsad)) {
	Xsad.focus();
    } else {
        Xsad = window.open("Saddlepage.html","Saddle","width=510,height=380,scrollbars=yes,resizable=yes");
    }
}

function SplicePop() {
    if (WinEx(Xspl)) {
	Xspl.focus();
    } else {
        Xspl = window.open("SpliceKit.html","Splice","width=510,height=380,scrollbars=yes,resizable=yes");
    }
}

function ContactPop() {
    if (WinEx(Xcon)) {
	Xcon.focus();
    } else {
        Xcon = window.open("ContactBox.html","Contact","width=530,height=420,scrollbars=yes,resizable=yes");
    }
}

function NewPop() {
    if (WinEx(xA)) {
	xA.focus();
    } else {
	xA = window.open('NewEquip.html','NewQ','width=650,height=600,scrollbars=yes,resizable=yes');
    }
}

function DiffPop() {
    if (WinEx(xDiff)) {
	xDiff.focus();
    } else {
	xDiff = window.open('LF-difference.html','Diff','width=625,height=550,scrollbars=yes,resizable=yes');
    }
}

function Pop357() {
    if (WinEx(Brng7)) {
	Brng7.focus();
    } else {
        Brng7 = window.open("357.html","357","width=450,height=400,scrollbars=yes,resizable=yes");
    }
}

function Pop393() {
    if (WinEx(Brng3)) {
	Brng3.focus();
    } else {
        Brng3 = window.open("393.html","393","width=450,height=480,scrollbars=yes,resizable=yes");
    }
}

function x2100Pop() {
    if (WinEx(x2100)) {
	x2100.focus();
    } else {
	x2100 = window.open('Where-2100.html','x21','width=450,height=500,scrollbars=yes,resizable=yes');
    }
}

function HistPop() {
    if (WinEx(xHist)) {
	xHist.focus();
    } else {
	xHist = window.open('LFHistory.html','xH','width=680,height=600,scrollbars=yes,resizable=yes');
    }
}


//-->