function f()
	{
		var obj=document.getElementById('img_Num');
		
		if(obj!=null)
		{
			obj.src='/inc/nzm.asp';
		}
	}
	
	document.onreadystatechange=function()
	{
		if(document.readyState=="complete")
		{
			//debugger

			var form=window.document.forms;

			if(form!=null)
			{
			for(var i=0;i<form.length;i++)
			{

			var tables=form[i].getElementsByTagName("table")			

            var pathname=GetUrlName();            
			if(tables!=null && pathname=='default1.asp')
			{			
				var table=tables[0];
				var rowslength;

				if (table!=null)
				{
					rowslength=table.rows.length;
					if (rowslength>=5)
					{
						var tr=table.insertRow(rowslength-1);

						var baseTr=table.rows(rowslength-2);
						
						tr.style.backgroundColor=baseTr.bgColor;

						var tdTitle=document.createElement("td");	
						tdTitle.style.textAlign="center";
						tdTitle.innerHTML="验证码:";
						tdTitle.style.backgroundColor=baseTr.cells[0].bgColor;

						var tdInput=document.createElement("td");	
						tdInput.innerHTML="&nbsp;<input style='width:50px' type='text' name='Num'>&nbsp;<a href='javascript:f()' title='看不清，换一个'><img src='/inc/nzm.asp' border='0' height='12' name='img_Num'></a>";
						tdInput.style.backgroundColor=baseTr.cells[1].bgColor;

						tr.appendChild(tdTitle);
						tr.appendChild(tdInput);
					}					
				}
			}}
			}
		}
	}
	
	function GetUrlName()
	{
	    var url=window.location.pathname;
	    var arrURL=url.split("/");	
	    
	    var urlName=arrURL[arrURL.length-1];
	    
	    return urlName;	        
	    
	}