js动态生成按钮并动态生成8位随机数

function doPrint() { 
//bdhtml=window.document.body.innerHTML; 
//sprnstr=""; 
//eprnstr=""; 
//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> 
<html> 
<head><title></title></head> 
<body> 
<table> 
<tr> 
<td id="show"></td> 
</tr> 
<tbody id="mybutton"></tbody> 
</table> 
</body> 
<script language="javascript"> 
init(); 
</ script> 
</html>

[Ctrl+A 全选注:如需引入外部Js需刷新才能执行]

js动态生成按钮并动态生成8位随机数_javascript技巧