function fixpngs() {
    var l = document.getElementsByTagName('img');
    for (i = 0; i < l.length; i++) {
        p = 'i/spacer.gif';
        n = l[i].getAttribute('src');
        g = n.toLowerCase();
        if (g.substring(g.length - 3) == "png") {
            l[i].setAttribute('src', p);
            l[i].style.cssText = "filter: progid:DXImageTransform.Microsoft.AlphaImageLoader (src='" + n + "')";
        }
    }
}

function only_numeric(e) {
    var k = key(e);
    if (k == 8 || k == 46 || k == 37 || k == 39) return true;
    return is_key_numeric(k);
}

function is_key_numeric(k) {
    return ((k >= 48 && k <= 57) || k == 0) ? true : false;
}

function key(e) {
    if ($.browser.msie) {
        var k = e.keyCode;
    } else {
        var k = e.which;
    }
    return k;
}

function next_cc(i) {
    var j = i + 1;
    var len = $("#ctl00_ContentHolder_txtCardNumber" + i).val().length;
    if (len == 4) {
        if (i == 4) { $("#ctl00_ContentHolder_txtCvv").focus(); }
        else { $("#ctl00_ContentHolder_txtCardNumber" + j).focus(); }
    }
}

/////////


function isEnter(e)
{
	var k = key(e);
	if(k == 13) {
		return true;
	} else {
		return false;
	}
}
function sadece_rakam(e)
{
	var k = key(e);
	return is_key_numeric(k);
}



function is_key_alpha_numeric(k)
{
	return (k >= 97 && k <= 122) || (k >= 65 && k <= 90) || (k >= 48 && k <= 57)?true:false;
}



function key(e)
{
	return (e.keyCode)?e.keyCode:e.which;
}

function key(e)
{
	if($.browser.msie) {
		var k = e.keyCode;
	} else {
		var k = e.which;
	}
	return k;
}
function isEnter(e)
{
	var k = key(e);
	if(k == 13) {
		return true;
	} else {
		return false;
	}
}


function is_key_numeric(k)
{
	return ( (k >= 48 && k <= 57) || (k >= 96 && k <= 105) || k == 0)?true:false;
}

function is_key_alpha_numeric(k)
{
	return ( (k >= 97 && k <= 122) || (k >= 65 && k <= 90) || (k >= 48 && k <= 57) || (k >= 96 && k <= 105) )?true:false;
}