onSubmit 检查是否有冲突修改，弹出对话框让user确定或者取消

function onSubmit() {

var updatedOn = gel(‘onLoad_sys_updated_on‘).value;

if (!updatedOn)

return;

var gr = new GlideRecord(g_form.getTableName());

if (!gr.get(g_form.getUniqueValue()))

return;

var dbUpdatedOn = gr.sys_updated_on + ‘‘;

var dbUpdatedBy = gr.sys_updated_by + ‘‘;

if (updatedOn != dbUpdatedOn)

return confirm(dbUpdatedBy + " " + getMessage("updated this record since you opened it - overwrite with your changes? Additional comments and Work notes will not be overwritten."));