一些常见的javascript应用(入门级)

<input type ="radio" name ="sex">男  <input type ="radio" name ="sex">女

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<input type ="button" value ="获取单选框的值" onclick ="a();">

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<a href ="#" onclick="jumpUrl();">连接onclick跳转</a> 跳转会回头顶部

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<a href ="javascript:void(0);" onclick="jumpUrl();">连接onclick跳转</a> 跳转不会回头顶部，但不支持IE6.0

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<a href ="###" onclick="jumpUrl();">连接onclick跳转</a> 跳转不会回头顶部，支持IE6.0，(获取URL:window.location.href.split("#")[0];

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<a href ="http://www.baidu.com" onmouseOver ="window.status='';return true;">隐藏连接地址</a> 防止看到连接window.status=''

<form name ="frm" method="post" target ="_blank">

</form>

<script>

a=function(){

    var sexs =document.getElementsByName("sex");

    for( i =0;i<sexs.length;i++){

       

        if(sexs[i].checked){

            alert(1);

        }else{

            alert(2);

        }

    }

}

jumpUrl =function (){

    frm.action="javascript_base.html";

    frm.submit();

}

function paramsTest(param1,param2){

    alert(param1);

}

function paramsTest(param1){

    alert(param1+1);

}

function menuToJump(){alert(1);}

//双击滚动

var currentpos,timer;

function initial(){

    timer =setInterval("scrollwindow()",50);

}

function scrollwindow(){

    currentpos =document.body.scrollTop;

    //alert(currentpos);

    window.scroll(0,++currentpos);

    if(currentpos!=document.body.scrollTop){

        sc();

    }

}

function sc(){

    clearInterval(timer);

}

document.ondblclick =initial;

document.onmousedown=sc;

//单击停止滚动

function enterKeyTest(){

    //if(event.key==13){

        //alert(22);

    //}

}

</script>

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<input type ="button"  value =function调用就近与参无关 onclick ="paramsTest(1);">

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<a href ='###' onclick="menuToJump('/jwsweb/userinfo/t_show_userinfo.jsp','userinfo')">李添连</a>

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<span id ="xx">aaaa</span>

<script>

var sec =9;

var time =9*1000;//

var xx=document.all.xx;

xx.innerHTML="请认真阅读注册协议("+sec+")";

function updateNum(num){

   

        if(num==(time/1000)){

       

       

        xx.innerHTML="请认真阅读注册协议";

        //alert(num);

        }else{

            var lastTime =time/1000-num;

        xx.innerHTML="请认真阅读注册协议("+lastTime+")";

        //alert(num);

        }   

   

}

//updateNum(5);

for(var b=1;b<=sec;i++){//遍历

    window.setTimeout("updateNum("+b+")",b*1000);

}

/*

function output(){

    outreg.innerHTMl="<input type ='button' value ='同意' onclick ='alert(/"同意/")'/>";

}

window.setTimeout("output()",time);//时间到

*/

//window.all.outreg.innerHTML="22";

</script>

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