js动态生成按钮并动态生成8位随机数_javascript技巧

<script language="javascript"> var i=0; var timer1; function doPrint() { //bdhtml=window.document.body.innerHTML; //sprnstr="<!--startprint-->"; //eprnstr="<!--endprint-->"; //prnhtml=bdhtml.substr(bdhtml.indexOf(sprnstr)+17); //prnhtml=prnhtml.substring(0,prnhtml.indexOf(eprnstr)); //window.document.body.innerHTML=prnhtml; window.print(); // window.document.body.innerHTML=bdhtml; } function init(){ x=Math.random(); x=Math.floor(x*100000000); if(x<9999999){ init(); }else{ i++; document.all.show.innerText=x; if(i==20){ var par=document.getElementById("mybutton"); var son_tr=document.createElement("TR"); var son_td=document.createElement("TD"); //列属性 son_td.colSpan="4"; son_td.setAttribute("align","center"); son_td.setAttribute("className","b_table_db1"); //生成密码属性 var input_type=document.createElement("INPUT"); input_type.type="button"; input_type.name="createCode"; input_type.value="确认密码"; input_type.onclick=save_onclick; input_type.setAttribute("className","button"); input_type.onFocus="this.blur();"; input_type.onmouseover='this.className="buttonY";'; input_type.onmouseout='this.className="button"'; //打印属性 var input_type2=document.createElement("INPUT"); input_type2.type="button"; input_type2.name="printButton"; input_type2.value="打印"; input_type2.onclick=doPrint; input_type2.setAttribute("className","button"); input_type2.onFocus="this.blur();"; input_type2.onmouseover='this.className="buttonY";'; input_type2.onmouseout='this.className="button"'; son_td.appendChild(input_type); son_td.appendChild(input_type2); son_tr.appendChild(son_td); par.appendChild(son_tr); } if(i<20){ timer1=setTimeout("init()",50); } } } //确认密码 function save_onclick(){ alert("确认密码"); } </script> <title></title> <table> <tr> <td id="show"></td> </tr> <tbody id="mybutton"></tbody> </table> <script language="javascript"> init(); </script>
[Ctrl+A 全选 注:如需引入外部Js需刷新才能执行]