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70 lines
2.2 KiB
70 lines
2.2 KiB
// this function is needed to work around
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// a bug in IE related to element attributes
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function hasClass(obj) {
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var result = false;
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if (obj.getAttributeNode("class") != null) {
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result = obj.getAttributeNode("class").value;
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}
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return result;
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}
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function stripe(id) {
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// the flag we'll use to keep track of
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// whether the current row is odd or even
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var even = false;
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// if arguments are provided to specify the colours
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// of the even & odd rows, then use the them;
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// otherwise use the following defaults:
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var evenColor = arguments[1] ? arguments[1] : "#fff";
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var oddColor = arguments[2] ? arguments[2] : "#eee";
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// obtain a reference to the desired table
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// if no such table exists, abort
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var table = document.getElementById(id);
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if (! table) { return; }
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// by definition, tables can have more than one tbody
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// element, so we'll have to get the list of child
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// <tbody>s
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var tbodies = table.getElementsByTagName("tbody");
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// and iterate through them...
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for (var h = 0; h < tbodies.length; h++) {
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// find all the <tr> elements...
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var trs = tbodies[h].getElementsByTagName("tr");
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// ... and iterate through them
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for (var i = 0; i < trs.length; i++) {
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// avoid rows that have a class attribute
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// or backgroundColor style
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if (! hasClass(trs[i]) &&
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! trs[i].style.backgroundColor) {
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// get all the cells in this row...
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var tds = trs[i].getElementsByTagName("td");
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// and iterate through them...
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for (var j = 0; j < tds.length; j++) {
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var mytd = tds[j];
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// avoid cells that have a class attribute
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// or backgroundColor style
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if (! hasClass(mytd) &&
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! mytd.style.backgroundColor) {
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mytd.style.backgroundColor =
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even ? evenColor : oddColor;
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}
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}
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}
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// flip from odd to even, or vice-versa
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even = ! even;
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}
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}
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}
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