function hideSolution1() {
  if( document.layers ) {
            //NN4
            document.solution1.visibility = 'hide';
  }
  if( document.all ) {
            //IE
            document.all.solution1.style.visibility = 'hidden';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution1").style.visibility = 'hidden';
  }
}

function showSolution1() {
  hideAll();
  if ( document.forms[0].name.charAt(0) != 'T' )
	return;
  if ( !checkLinks() ) return;
  if( document.layers ) {
            //NN4
            document.solution1.visibility = 'show';
  }
  if( document.all ) {
            //IE
            document.all.solution1.style.visibility = 'visible';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution1").style.visibility = 'visible';
  }
}

function hideSolution2() {
  if( document.layers ) {
            //NN4
            document.solution2.visibility = 'hide';
  }
  if( document.all ) {
            //IE
            document.all.solution2.style.visibility = 'hidden';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution2").style.visibility = 'hidden';
  }
}

function showSolution2() {
  hideAll();
  if ( document.forms[0].name.charAt(3) != 'S' )
	return;
  if ( !checkLinks() ) return;
  if( document.layers ) {
            //NN4
            document.solution2.visibility = 'show';
  }
  if( document.all ) {
            //IE
            document.all.solution2.style.visibility = 'visible';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution2").style.visibility = 'visible';
  }
}

function hideSolution3() {
  if( document.layers ) {
            //NN4
            document.solution3.visibility = 'hide';
  }
  if( document.all ) {
            //IE
            document.all.solution3.style.visibility = 'hidden';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution3").style.visibility = 'hidden';
  }
}

function showSolution3() {
  hideAll();
  if ( document.forms[0].name.charAt(5) != 'k' )
	return;
  if ( !checkLinks() ) return;
  if( document.layers ) {
            //NN4
            document.solution3.visibility = 'show';
  }
  if( document.all ) {
            //IE
            document.all.solution3.style.visibility = 'visible';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution3").style.visibility = 'visible';
  }
}

function hideSolution4() {
  if( document.layers ) {
            //NN4
            document.solution4.visibility = 'hide';
  }
  if( document.all ) {
            //IE
            document.all.solution4.style.visibility = 'hidden';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution4").style.visibility = 'hidden';
  }
}

function showSolution4() {
  hideAll();
  if ( document.forms[0].name.charAt(7) != 'a' )
	return;
  if ( !checkLinks() ) return;
  if( document.layers ) {
            //NN4
            document.solution4.visibility = 'show';
  }
  if( document.all ) {
            //IE
            document.all.solution4.style.visibility = 'visible';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution4").style.visibility = 'visible';
  }
}

function hideSolution5() {
  if( document.layers ) {
            //NN4
            document.solution5.visibility = 'hide';
  }
  if( document.all ) {
            //IE
            document.all.solution5.style.visibility = 'hidden';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution5").style.visibility = 'hidden';
  }
}

function showSolution5() {
  hideAll();
  if ( document.forms[0].name.charAt(9) != 'o' )
	return;
  if ( !checkLinks() ) return;
  if( document.layers ) {
            //NN4
            document.solution5.visibility = 'show';
  }
  if( document.all ) {
            //IE
            document.all.solution5.style.visibility = 'visible';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution5").style.visibility = 'visible';
  }
}

function hideSolution6() {
  if( document.layers ) {
            //NN4
            document.solution6.visibility = 'hide';
  }
  if( document.all ) {
            //IE
            document.all.solution6.style.visibility = 'hidden';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution6").style.visibility = 'hidden';
  }
}

function showSolution6() {
  hideAll();
  if ( document.forms[0].name.charAt(4) != 'a' )
	return;
  if ( !checkLinks() ) return;
  if( document.layers ) {
            //NN4
            document.solution6.visibility = 'show';
  }
  if( document.all ) {
            //IE
            document.all.solution6.style.visibility = 'visible';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution6").style.visibility = 'visible';
  }
}

function hideSolution7() {
  if( document.layers ) {
            //NN4
            document.solution7.visibility = 'hide';
  }
  if( document.all ) {
            //IE
            document.all.solution7.style.visibility = 'hidden';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution7").style.visibility = 'hidden';
  }
}

function showSolution7() {
  hideAll();
  if ( document.forms[0].name.charAt(6) != 'h' )
	return;
  if ( !checkLinks() ) return;
  if( document.layers ) {
            //NN4
            document.solution7.visibility = 'show';
  }
  if( document.all ) {
            //IE
            document.all.solution7.style.visibility = 'visible';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution7").style.visibility = 'visible';
  }
}

function hideSolution8() {
  if( document.layers ) {
            //NN4
            document.solution8.visibility = 'hide';
  }
  if( document.all ) {
            //IE
            document.all.solution8.style.visibility = 'hidden';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution8").style.visibility = 'hidden';
  }
}

function showSolution8() {
  hideAll();
  if ( document.forms[0].name.charAt(8) != 'r' )
	return;
  if ( !checkLinks() ) return;
  if( document.layers ) {
            //NN4
            document.solution8.visibility = 'show';
  }
  if( document.all ) {
            //IE
            document.all.solution8.style.visibility = 'visible';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution8").style.visibility = 'visible';
  }
}

function hideSolution9() {
  if( document.layers ) {
            //NN4
            document.solution9.visibility = 'hide';
  }
  if( document.all ) {
            //IE
            document.all.solution9.style.visibility = 'hidden';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution9").style.visibility = 'hidden';
  }
}

function showSolution9() {
  hideAll();
  if ( document.forms[0].name.charAt(10) != 'v' )
	return;
  if ( !checkLinks() ) return;
  if( document.layers ) {
            //NN4
            document.solution9.visibility = 'show';
  }
  if( document.all ) {
            //IE
            document.all.solution9.style.visibility = 'visible';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution9").style.visibility = 'visible';
  }
}

function hideSolution10() {
  if( document.layers ) {
            //NN4
            document.solution10.visibility = 'hide';
  }
  if( document.all ) {
            //IE
            document.all.solution10.style.visibility = 'hidden';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution10").style.visibility = 'hidden';
  }
}

function showSolution10() {
  hideAll();
  if ( document.forms[0].name.charAt(1) != 'i' )
	return;
  if ( !checkLinks() ) return;
  if( document.layers ) {
            //NN4
            document.solution10.visibility = 'show';
  }
  if( document.all ) {
            //IE
            document.all.solution10.style.visibility = 'visible';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution10").style.visibility = 'visible';
  }
}

function hideSolution11() {
  if( document.layers ) {
            //NN4
            document.solution11.visibility = 'hide';
  }
  if( document.all ) {
            //IE
            document.all.solution11.style.visibility = 'hidden';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution11").style.visibility = 'hidden';
  }
}

function showSolution11() {
  hideAll();
  if ( document.forms[0].name.charAt(5) != 'k' )
	return;
  if ( !checkLinks() ) return;
  if( document.layers ) {
            //NN4
            document.solution11.visibility = 'show';
  }
  if( document.all ) {
            //IE
            document.all.solution11.style.visibility = 'visible';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution11").style.visibility = 'visible';
  }
}

function hideSolution12() {
  if( document.layers ) {
            //NN4
            document.solution12.visibility = 'hide';
  }
  if( document.all ) {
            //IE
            document.all.solution12.style.visibility = 'hidden';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution12").style.visibility = 'hidden';
  }
}

function showSolution12() {
  hideAll();
  if ( document.forms[0].name.charAt(7) != 'a' )
	return;
  if ( !checkLinks() ) return;
  if( document.layers ) {
            //NN4
            document.solution12.visibility = 'show';
  }
  if( document.all ) {
            //IE
            document.all.solution12.style.visibility = 'visible';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution12").style.visibility = 'visible';
  }
}

function hideSolution13() {
  if( document.layers ) {
            //NN4
            document.solution13.visibility = 'hide';
  }
  if( document.all ) {
            //IE
            document.all.solution13.style.visibility = 'hidden';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution13").style.visibility = 'hidden';
  }
}

function showSolution13() {
  hideAll();
  if ( document.forms[0].name.charAt(2) != 'm' )
	return;
  if ( !checkLinks() ) return;
  if( document.layers ) {
            //NN4
            document.solution13.visibility = 'show';
  }
  if( document.all ) {
            //IE
            document.all.solution13.style.visibility = 'visible';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution13").style.visibility = 'visible';
  }
}

function hideSolution14() {
  if( document.layers ) {
            //NN4
            document.solution14.visibility = 'hide';
  }
  if( document.all ) {
            //IE
            document.all.solution14.style.visibility = 'hidden';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution14").style.visibility = 'hidden';
  }
}

function showSolution14() {
  hideAll();
  if ( document.forms[0].name.charAt(0) != 'T' )
	return;
  if ( !checkLinks() ) return;
  if( document.layers ) {
            //NN4
            document.solution14.visibility = 'show';
  }
  if( document.all ) {
            //IE
            document.all.solution14.style.visibility = 'visible';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution14").style.visibility = 'visible';
  }
}

function hideSolution15() {
  if( document.layers ) {
            //NN4
            document.solution15.visibility = 'hide';
  }
  if( document.all ) {
            //IE
            document.all.solution15.style.visibility = 'hidden';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution15").style.visibility = 'hidden';
  }
}

function showSolution15() {
  hideAll();
  if ( document.forms[0].name.charAt(3) != 'S' )
	return;
  if ( !checkLinks() ) return;
  if( document.layers ) {
            //NN4
            document.solution15.visibility = 'show';
  }
  if( document.all ) {
            //IE
            document.all.solution15.style.visibility = 'visible';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution15").style.visibility = 'visible';
  }
}

function hideSolution16() {
  if( document.layers ) {
            //NN4
            document.solution16.visibility = 'hide';
  }
  if( document.all ) {
            //IE
            document.all.solution16.style.visibility = 'hidden';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution16").style.visibility = 'hidden';
  }
}

function showSolution16() {
  hideAll();
  if ( document.forms[0].name.charAt(5) != 'k' )
	return;
  if ( !checkLinks() ) return;
  if( document.layers ) {
            //NN4
            document.solution16.visibility = 'show';
  }
  if( document.all ) {
            //IE
            document.all.solution16.style.visibility = 'visible';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution16").style.visibility = 'visible';
  }
}

function hideSolution17() {
  if( document.layers ) {
            //NN4
            document.solution17.visibility = 'hide';
  }
  if( document.all ) {
            //IE
            document.all.solution17.style.visibility = 'hidden';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution17").style.visibility = 'hidden';
  }
}

function showSolution17() {
  hideAll();
  if ( document.forms[0].name.charAt(7) != 'a' )
	return;
  if ( !checkLinks() ) return;
  if( document.layers ) {
            //NN4
            document.solution17.visibility = 'show';
  }
  if( document.all ) {
            //IE
            document.all.solution17.style.visibility = 'visible';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution17").style.visibility = 'visible';
  }
}

function hideSolution18() {
  if( document.layers ) {
            //NN4
            document.solution18.visibility = 'hide';
  }
  if( document.all ) {
            //IE
            document.all.solution18.style.visibility = 'hidden';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution18").style.visibility = 'hidden';
  }
}

function showSolution18() {
  hideAll();
  if ( document.forms[0].name.charAt(9) != 'o' )
	return;
  if ( !checkLinks() ) return;
  if( document.layers ) {
            //NN4
            document.solution18.visibility = 'show';
  }
  if( document.all ) {
            //IE
            document.all.solution18.style.visibility = 'visible';
  }
  if( !document.all && document.getElementById ) {
            //NN6
            document.getElementById("solution18").style.visibility = 'visible';
  }
}