//Gioi han nhap text
function limitText(limitField, limitCount, limitNum) 
{
	if (limitField.value.length > limitNum) 
	{
		limitField.value = limitField.value.substring(0, limitNum);
	} 
	
	else 
	{
		limitCount.value = limitNum - limitField.value.length;
	}
}
//Tu dong tang chieu cao doi tuong
function calcHeight()
{
    //SH Iframe Height Auto Resize v.01
    //Used to resize the height of IFRAME to fit the content without any scrollbar.
    //Coded by Silvery Hat Hacker 2006
    var heightPage = document.getElementById('If_FeeTables').contentWindow.document.body.scrollHeight;
    document.getElementById('If_FeeTables').height = heightPage;
}
//an hien doi tuong
function showHideOj(ojName)
{
    var oj = document.getElementById(ojName);
    if(oj.style.display == 'none')
    {
        oj.style.display = '';

        return;
    }
    if(oj.style.display == '')
    {
        oj.style.display = 'none';
        return;
    }
}