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>

posted @ 2015-11-11 14:58  宝贝企鹅  阅读(148)  评论(0)    收藏  举报