states=new Array();
states[0]="atoz_a";
states[1]="atoz_b";
states[2]="atoz_c";
states[3]="atoz_d";
states[4]="atoz_e";
states[5]="atoz_f";
states[6]="atoz_g";
states[7]="atoz_h";
states[8]="atoz_i";
states[9]="atoz_j";
states[10]="atoz_k";
states[11]="atoz_l";
states[12]="atoz_m";
states[13]="atoz_n";
states[14]="atoz_o";
states[15]="atoz_p";
states[16]="atoz_q";
states[17]="atoz_r";
states[18]="atoz_s";
states[19]="atoz_t";
states[20]="atoz_u";
states[21]="atoz_v";
states[22]="atoz_w";
states[23]="atoz_x";
states[24]="atoz_y";
states[25]="atoz_z";

function hideallExcept(elm) {
    for (var i = 0; i < states.length; i++) {
	var layer = document.getElementById(states[i]);
	if (elm!= states[i]) {
	    layer.style.display = "none";
	}
	else {
	    layer.style.display = "block";
	}
    }
}
function showall() {

    for (var i = 0; i < states.length; i++) {
	var layer = document.getElementById(states[i]);
	layer.style.display = "block";

    }
}