showModalDialog 가 너무커 get 방식으로 넘길수가 없네요.가르

post 방식으로 넘기려고 해도 감싸고 있는폼 액션이 다른곳을 가리키고 있어서 form으로는 넘길수 가 없네요..

고수님들 도와 주세요,..
printf("function selectRead() {\n");
printf(" var args = new Array();\n");
printf(" var arr = null;\n");
printf(" var dateName = new Date();\n");
printf("\n");
printf(" args[\'Flag\'] = \'\';\n");
printf(" args[\'Attach\'] = \'\';\n");
printf(" arr = showModalDialog(\"/senbin/admin/admin_member_aframe?server=%s&read=\" + document.bullinsert.readad.value + \"&contents=\" + document.bullinsert.contentsad.value + \"&write=\" + document.bullinsert.writead.value + \"&modify=\" + document.bullinsert.modifyad.value + \"&delete=\" + document.bullinsert.deletead.value + \"&admin=\" + document.bullinsert.adminad.value + \"&move=\" + document.bullinsert.movead.value + \"&copy=\" + document.bullinsert.copyad.value + \"&session=\" + dateName.getTime(), args, \"font-family:Verdana; font-size:12; status:no; help:no; resizable:yes; dialogWidth:670px; dialogHeight:739px\");\n", server_name);

printf(" if (arr != null) {\n");
printf(" if(arr[\"Flag\"] == \'d\'){\n");
printf(" document.bullinsert.readad.value = arr[\'Address\'];\n");
printf(" document.bullinsert.contentsad.value = arr[\'bAddress\'];\n");
printf(" document.bullinsert.writead.value = arr[\'cAddress\'];\n");
printf(" document.bullinsert.modifyad.value = arr[\'dAddress\'];\n");
printf(" document.bullinsert.deletead.value = arr[\'eAddress\'];\n");
printf(" document.bullinsert.adminad.value = arr[\'fAddress\'];\n");
printf(" document.bullinsert.movead.value = arr[\'gAddress\'];\n");
printf(" document.bullinsert.copyad.value = arr[\'hAddress\'];\n");

printf(" }\n");
printf(" }\n");
printf("}\n");

printf(" <form autocomplete=\"off\" name=\"bullinsert\" action=\"/sen-bin/admin/admin_bulletin_A_B_modify\" method=\"post\" onSubmit=\"return onGo();\"><input type=hidden name=\"server\" value=\"%s\"><input type=hidden name=\"dbserver\" value=\"%s\"><input type=hidden name=\"userver\" value=\"%s\">\n", server_name, user_dbserver, user_server);
.
.
.
.
.
</form>