function icon_in(n){
	if( n=="del" ){
		var icon_value = document.form1.userdata__u_condition.value;
		icon_value = icon_value.slice(0,-16);
		document.form1.userdata__u_condition.value = icon_value;
	}else{
		document.form1.userdata__u_condition.value = document.form1.userdata__u_condition.value + n;
	}
}

function on_display(){
	var icon = "abcdefghijklmnopqrstuvwxy";
	var a = 0;
	while (a < 25){
		var button_icon = icon.substr(a,5);
		document.write("<input type=\"button\" size=\"10\" value=\"");
		document.write(button_icon);
		document.write("\" onClick=\"icon_in('[ico]");
		document.write(button_icon);
		document.write("[/ico]')\"");
		document.write("\">");
		a = a + 5;
	}
	document.write("<br>");
	document.write("<input type=\"button\" value=\"del\" onClick=\"icon_in('del')\">");
}