本文實例講述了JavaScript實現點擊單元格改變背景色的方法。分享給大家供大家參考，具體如下：
<html><body><table onclick="SetColor(event)" id="_t" width="500" border="0" cellspacing="0" cellpadding="0"><tr><td width="93" height="29" background="hotlinkbg.gif" align="center">出租信息</td><td width="93" height="29" background="hotlinkbg.gif" align="center">求租信息</td><td width="314" height="29" background="hotlinkbg.gif" ></td></tr></table><table width="500"><tr><td>aaaaa</td><td>bbbbb</td><td>ccccc</td><td>ddddd</td></tr></table><script tyle="text/javascript">var oldClr = new Array()function SetColor(e){ if (!e) e = window.event; var obj if(window.event) obj = e.srcElement else obj = e.targetif(obj.tagName != "TD") returnvar oldTD = obj while( obj.tagName != "TR") obj = obj.parentNode var i for(i = 0;i<obj.cells.length;i++) { if(obj.cells[i] == oldTD) break } var table = document.getElementById("_t") for(j = 0;j<table.rows.length;j++) { //如果要刪除其它列的顏色，請加上下面的3行 for(m = 0;m < table.rows[j].cells.length;m++) { table.rows[j].cells[m].background = oldClr[m] } //table.rows[j].cells[i].bgColor = table.rows[j].cells[i].background="button1_on.gif" table.rows[j].cells[i].background = table.rows[j].cells[i].background==oldClr[i]?"button1_on.gif":oldClr[i] }}window.onload = function(){ var table = document.getElementById("_t") for(j = 0;j<table.rows[0].cells.length;j++) { oldClr[j] = table.rows[0].cells[j].background }}</script></body></html>
希望本文所述對大家JavaScript程序設計有所幫助。
