function vuThumb() 
{
	thumbs = "t_" + event.srcElement.name.split("_")[1];
	
	if(event.srcElement.value.match(/(.jpg|.jpeg|.gif|.png)$/))
	{
		document.images[thumbs].src = event.srcElement.value;
		document.images[thumbs].style.display = "";
	}
	else
	{
		document.images[thumbs].style.display = "none";
	}
}

var noTh = 0;
var maXnoTh = 20;

function initThumb() 
{
	fa = "";
	for(var i = 1; i < maXnoTh+1; i++)
	{
		fa += '<DIV ID="ta_'+ i +'" style="display:none;"></DIV>';
	}

	Thumb.innerHTML = fa; 
	addThumb();

}

function addThumb() 
{
	if(maXnoTh <= noTh)
	{
		alert('´õÀÌ»ó Ãß°¡ÇϽǼö ¾ø½À´Ï´Ù.');
		return false;
	}

	noTh = noTh + 1;

	addTh = '<table width="95%" cellpadding="2" cellspacing="1" border="0" bgcolor="#cccccc">'+
		'<tr> '+
		'	<TD ALIGN="CENTER" WIDTH="100" bgcolor="#eeeeee">Ãß°¡ À̹ÌÁö'+ noTh +'</TD>'+
		'	<td valign="top" bgcolor="#ffffff"> '+
		'		<input type="file" name="f_'+ noTh +'" size="30" onChange="vuThumb()">'+
		'	</td>'+
		'</tr>'+
	    '</table>'+
		'<table width="95%" cellpadding="1" cellspacing="0" border="0">'+
	    '<tr>'+
		'	<td colspan="2">'+
		'		<img id=t_'+ noTh +' style="display:none;" border="0">'+
		'	</td>'+
		'</tr>'+
		'</table>';

	ta = eval("ta_" + noTh);
	ta.innerHTML = addTh;
	ta.style.display = "";
}
function delThumb() 
{
	if(noTh <= 0)
	{
		alert('´õÀÌ»ó »¬¼ö ¾ø½À´Ï´Ù.');
		return false;
	}

	ta = eval("ta_" + noTh);

	noTh = noTh - 1;

	ta.innerHTML = '';
	ta.style.display = "none";
}