Jquery: Get next element from an element

How can I get the target from the with td rowspan=4

Not sure abo开发者_JAVA技巧ut:

$("#fromTd").parent("tr").next().eq($("#fromTd").attr("rowspan")-1)


<table>
   <tr>...</tr>
   <tr>...</tr>
   <tr><td id="fromTd" rowspan="4"></td></tr>
   <tr>...</tr>
   <tr>...</tr>
   <tr>...</tr>
   <tr>...</tr> -> target (can be aleatory position..)
</table>

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Correct me if I am wrong but it sounds like what you want is to get the next <tr> after X rows where X is the rowspan of a given <td> - 1. In other words, you want the next row into which that <td> will NOT extend.

If that is the case, this should do the trick:

var eq = $("#fromTd").attr("rowspan") - 1;
var row = $("#fromTd").parent("tr").nextAll(':eq(' + eq + ')');

Here's a live demo: http://jsfiddle.net/wLPA9/

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If you're trying to do what that line looks like it's trying to do—selecting the row after the end of the current cell's rowspan—you would just need nextAll() instead of next(), which only ever returns the immediate next element sibling.

var td= $('#fromTd');
var nextr= td.parent().nextAll().eq(td.attr('rowspan')-1);

Alternatively if you've got lots of following rows and you don't want to have to select them all to pick a single one out, you could do it slightly more efficiently with the standard DOM rows and rowIndex properties:

var nextr= td.closest('table')[0].rows[td[0].parentNode.rowIndex+td[0].rowSpan];