function choice1()

{

var win1=window.open("sun.htm","PlantSun", "toolbars=no,resize=no,width=450,height=400");

}

function choice2()

{

var win2=window.open("moon.htm","PlantMoon", "toolbars=no,resize=no,width=450,height=400");

}

function choice3()

{

var win3=window.open("jupiter.htm","PlanetJupiter", "toolbars=no,resize=no,width=400,height=400");

}

function choice4()

{

var win4=window.open("venus.htm","PlanetVenus", "toolbars=no,resize=no,width=400,height=500");

}

function choice5()

{

var win5=window.open("mars.htm","PlanetMars", "toolbars=no,resize=no,width=400,height=400");

}

function choice6()

{

var win6=window.open("neptune.htm","PlanetNeptune", "toolbars=no,resize=no,width=500,height=550");

}

function choice7()

{

var win7=window.open("mercury.htm","PlanetMercury", "toolbars=no,resize=no,width=450,height=450");

}

function choice8()

{

var win8=window.open("uranus.htm","PlanetUranus", "toolbars=no,resize=no,width=400,height=425");

}

function choice9()

{

var win9=window.open("pluto.htm","PlanetPluto", "toolbars=no,resize=no,width=400,height=400");

}

function choice10()

{

var win10=window.open("saturn.htm","PlanetSaturn", "toolbars=no,resize=no,width=400,height=425");

}