js 动态增加表格

1. function insRow(){ 
2.          
3.     document.getElementById("rowId").value=parseInt(document.getElementById("rowId").value)+1; 
4.          
5.     var rowId = document.getElementById("rowId").value; 
6.  
7.     var tb1 = document.getElementById("ctable");  

function insRow(){
		
	document.getElementById("rowId").value=parseInt(document.getElementById("rowId").value)+1;
		
	var rowId = document.getElementById("rowId").value;

	var tb1 = document.getElementById("ctable"); 

[javascript] view plain copy print ?

1. <span style="color: rgb(255, 0, 0);">var rowsCount=tb1.rows.length;</span> 

	var rowsCount=tb1.rows.length;

[javascript] view plain copy print ?

1. <span style="color: rgb(255, 0, 0);"> 
2.     var row = tb1.insertRow(rowsCount);   </span> 

	var row = tb1.insertRow(rowsCount);   

[javascript] view plain copy print ?

1. <span style="color: rgb(255, 0, 0);"> 
2.     var cell = row.insertCell(0);  </span> 
3.     cell.innerHTML="<img src=\"<%=contextPath%>/img/update.gif\" class=\"nav\" />";     
4.      var cell = row.insertCell(1);  
5.     cell.innerHTML="<input name=\"companyname"+rowId+"\" ID=\"companyname"+rowId+"\" type=\"text\" />"; 
6.     var cell = row.insertCell(2);  
7.     cell.innerHTML="<input name=\"companynameen"+rowId+"\" ID=\"companynameen"+rowId+"\" type=\"text\"  />"; 
8. }