function button_a(n){
if (n == 1){
 document.images.button1.src = "images/homepage_over_25x72.gif"; }
if (n == 0){
 document.images.button1.src = "images/homepage_25x72.gif";}
}

function button_b(n){
if (n == 1){
 document.images.button2.src = "images/meetings_over_25x72.gif"; }
if (n == 0){
 document.images.button2.src = "images/meetings_25x72.gif";}
}

function button_c(n){
if (n == 1){
 document.images.button3.src = "images/training_over_25x72.gif"; }
if (n == 0){
 document.images.button3.src = "images/training_25x72.gif";}
}

function button_d(n){
if (n == 1){
 document.images.button4.src = "images/booksale_over_25x72.gif"; }
if (n == 0){
 document.images.button4.src = "images/booksale_25x72.gif";}
}

function button_e(n){
if (n == 1){
 document.images.button5.src = "images/smallads_over_25x72.gif"; }
if (n == 0){
 document.images.button5.src = "images/smallads_25x72.gif";}
}

function button_f(n){
if (n == 1){
 document.images.button6.src = "images/contacts_over_25x72.gif"; }
if (n == 0){
 document.images.button6.src = "images/contacts_25x72.gif";}
}

function button_g(n){
if (n == 1){
 document.images.button7.src = "images/links_over_25x72.gif"; }
if (n == 0){
 document.images.button7.src = "images/links_25x72.gif";}
}

function button_h(n){
if (n == 1){
 document.images.button8.src = "images/aboutus_over_25x72.gif"; }
if (n == 0){
 document.images.button8.src = "images/aboutus_25x72.gif";}
}




function button_a_b(n){
if (n == 1){
 document.images.button1.src = "images/homepage_over_39x120.gif"; }
if (n == 0){
 document.images.button1.src = "images/homepage_39x120.gif";}
}

function button_b_b(n){
if (n == 1){
 document.images.button2.src = "images/meetings_over_39x120.gif"; }
if (n == 0){
 document.images.button2.src = "images/meetings_39x120.gif";}
}

function button_c_b(n){
if (n == 1){
 document.images.button3.src = "images/training_over_39x120.gif"; }
if (n == 0){
 document.images.button3.src = "images/training_39x120.gif";}
}

function button_d_b(n){
if (n == 1){
 document.images.button4.src = "images/booksale_over_39x120.gif"; }
if (n == 0){
 document.images.button4.src = "images/booksale_39x120.gif";}
}

function button_e_b(n){
if (n == 1){
 document.images.button5.src = "images/smallads_over_39x120.gif"; }
if (n == 0){
 document.images.button5.src = "images/smallads_39x120.gif";}
}

function button_f_b(n){
if (n == 1){
 document.images.button6.src = "images/contacts_over_39x120.gif"; }
if (n == 0){
 document.images.button6.src = "images/contacts_39x120.gif";}
}

function button_g_b(n){
if (n == 1){
 document.images.button7.src = "images/links_over_39x120.gif"; }
if (n == 0){
 document.images.button7.src = "images/links_39x120.gif";}
}

function button_h_b(n){
if (n == 1){
 document.images.button8.src = "images/aboutus_over_39x120.gif"; }
if (n == 0){
 document.images.button8.src = "images/aboutus_39x120.gif";}
}



function button_close(n){
if (n == 1){
 document.images.button_close_1.src = "images/button_close_over.gif"; }
if (n == 0){
 document.images.button_close_1.src = "images/button_close.gif";}
}

function button_top_a(n){
if (n == 1){
 document.images.button_top_1.src = "images/button_top_over.gif"; }
if (n == 0){
 document.images.button_top_1.src = "images/button_top.gif";}
}

function button_top_b(n){
if (n == 1){
 document.images.button_top_2.src = "images/button_top_over.gif"; }
if (n == 0){
 document.images.button_top_2.src = "images/button_top.gif";}
}

function button_top_c(n){
if (n == 1){
 document.images.button_top_3.src = "images/button_top_over.gif"; }
if (n == 0){
 document.images.button_top_3.src = "images/button_top.gif";}
}
function button_top_d(n){
if (n == 1){
 document.images.button_top_4.src = "images/button_top_over.gif"; }
if (n == 0){
 document.images.button_top_4.src = "images/button_top.gif";}
}

function button_top_e(n){
if (n == 1){
 document.images.button_top_5.src = "images/button_top_over.gif"; }
if (n == 0){
 document.images.button_top_5.src = "images/button_top.gif";}
}

function button_top_f(n){
if (n == 1){
 document.images.button_top_6.src = "images/button_top_over.gif"; }
if (n == 0){
 document.images.button_top_6.src = "images/button_top.gif";}
}
function button_top_g(n){
if (n == 1){
 document.images.button_top_7.src = "images/button_top_over.gif"; }
if (n == 0){
 document.images.button_top_7.src = "images/button_top.gif";}
}

function button_top_h(n){
if (n == 1){
 document.images.button_top_8.src = "images/button_top_over.gif"; }
if (n == 0){
 document.images.button_top_8.src = "images/button_top.gif";}
}

function button_top_i(n){
if (n == 1){
 document.images.button_top_9.src = "images/button_top_over.gif"; }
if (n == 0){
 document.images.button_top_9.src = "images/button_top.gif";}
}
function button_top_j(n){
if (n == 1){
 document.images.button_top_10.src = "images/button_top_over.gif"; }
if (n == 0){
 document.images.button_top_10.src = "images/button_top.gif";}
}

function button_top_k(n){
if (n == 1){
 document.images.button_top_11.src = "images/button_top_over.gif"; }
if (n == 0){
 document.images.button_top_11.src = "images/button_top.gif";}
}