| ititle|words that are displayed|required
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| ianchor|set the anchor where the link should point to|optional
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| isort|name of the sort column without the orientation (e.g.: title)|optional
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| -isort_mode|this can be used to manually pass the sort mode to smartlink. overrides the value given in $_REQUEST['sort_mode'], which is the default|optional
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| +isort_mode|this can be used to manually pass the sort mode to smartlink. overrides the value given in $_REQUEST[['sort_mode']], which is the default|optional |
| iorder|if set to asc or desc, it sets the default sorting order of this particular column. 'asc' is default|optional
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| idefault|if set, it will highlight this link if no $isort_mode is given. this should only be set once per sorting group since it represents the default sorting column|optional
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| itype|can be set to 'url', which will output only the url, or 'li', which will output <li><a ... ></li>|optional
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