JS 隔行变色

时间:2023-03-09 23:29:38
JS 隔行变色

<script type="text/javascript">  

    window.onload=function(){     

       var oUl=document.getElementById('ul1');     

       var aLi=oUl.getElementsByTagName('li');      

       for(var i=0; i< aLi .length; i++)  {       

           if(i%2==0)  //取模 求余数          

        {   

            aLi[i].style.background='red';  

          

        }    

        }  

    }  

    </script>  

    <ul id="ul1">  

      <li>webtall</li>  

      <li>webtall</li>  

      <li>webtall</li>  

      <li>webtall</li>  

      <li>webtall</li>  

</ul>

<head runat="server">

    <title></title>

    <script type="text/javascript">

        window.onload = function () {

            var otab = document.getElementById('tab1');

            var thiscolor = '';

            for (var i = 0; i < otab.tBodies[0].rows.length; i++) {

                otab.tBodies[0].rows[i].onmouseover = function () {

                    thiscolor = this.style.background;

                    this.style.background = '#00FFFF';

                };

                otab.tBodies[0].rows[i].onmouseout = function () {

                    this.style.background = thiscolor;

                };

                if (i % 2) {

                    otab.tBodies[0].rows[i].style.background = '';

                }

                else {

                    otab.tBodies[0].rows[i].style.background = '#FFFF00';

                }

            }

        };

    </script>