function zaznacz(element) {
        element.focus();
        element.select();
}

function umieszczanie() {
	przycisk = document.getElementById('przycisk');
	przycisk.disabled = true;
	przycisk.value = "Loading...";
}

function add_img_num(val) {
	if (val==1) {
		document.files.img_num.value++;
	}
	else {
		document.files.img_num.value--;
	}
	form_gen();
	return;
}

function form_gen() {
	var num_fields = document.files.img_num.value;
	if (isNaN(num_fields)) {
		alert('You have to put only numbers in the form.');
		document.files.img_num.value = 1;
		num_fields = 1;
	}
	if (num_fields > 20) {
		alert('The max number of images to be added at one time is 20');
		document.files.img_num.value = 20;
		num_fields = 20;
	}
	if (num_fields < 1) {
		document.files.img_num.value = 1;
		num_fields = 1;
	}
	if (num_fields < 2) {
		document.files.action = 'index.php?m=upload';
		document.getElementById('page_title').innerHTML = 'Add a Picture!';
		document.getElementById('title_contents').innerHTML = 'Submit your image without any obstacles!<br />Use the form below.';
		if (document.getElementById('n_min_chb').checked) {
			document.getElementById('n_min').innerHTML = '<input type="checkbox" name="n_min" id="n_min_chb" value="1" onClick="javascript:if(this.checked) document.getElementById(\'n_pasek\').style.display = \'none\'; else document.getElementById(\'n_pasek\').style.display = \'block\';" checked> Do not create thumbnails';
		}
		else {
			document.getElementById('n_min').innerHTML = '<input type="checkbox" name="n_min" id="n_min_chb" value="1" onClick="javascript:if(this.checked) document.getElementById(\'n_pasek\').style.display = \'none\'; else document.getElementById(\'n_pasek\').style.display = \'block\';"> Do not create thumbnails';
		}
		if (document.getElementById('n_pasek_chb').checked) {
			document.getElementById('n_pasek').innerHTML = '<input type="checkbox" name="n_pasek" id="n_pasek_chb" value="1" checked> Do not add the bottom bar in the thumbnail';
		}
		else {
			document.getElementById('n_pasek').innerHTML = '<input type="checkbox" name="n_pasek" id="n_pasek_chb" value="1"> Do not add the bottom bar in the thumbnail';
		}
		if (document.getElementById('ch_size_chb').checked) {
			document.getElementById('ch_size').innerHTML = '<input type="checkbox" name="ch_size" value="1" id="ch_size_chb" onClick="javascript:if(this.checked) document.getElementById(\'resize_div\').style.display = \'block\'; else document.getElementById(\'resize_div\').style.display = \'none\';" checked> Change the size of the picture';
		}
		else {
			document.getElementById('ch_size').innerHTML = '<input type="checkbox" name="ch_size" value="1" id="ch_size_chb" onClick="javascript:if(this.checked) document.getElementById(\'resize_div\').style.display = \'block\'; else document.getElementById(\'resize_div\').style.display = \'none\';"> Change the size of the picture';
		}
}
	else {
		document.files.action = 'index.php?m=uploads';
		document.getElementById('page_title').innerHTML = 'Add Pictures!';
		document.getElementById('title_contents').innerHTML = 'Submit your images without any obstacles!<br />Use the form below.';
		if (document.getElementById('n_min_chb').checked) {
			document.getElementById('n_min').innerHTML = '<input type="checkbox" name="n_min" id="n_min_chb" value="1" onClick="javascript:if(this.checked) document.getElementById(\'n_pasek\').style.display = \'none\'; else document.getElementById(\'n_pasek\').style.display = \'block\';" checked> Do not create thumbnails';
		}
		else {
			document.getElementById('n_min').innerHTML = '<input type="checkbox" name="n_min" id="n_min_chb" value="1" onClick="javascript:if(this.checked) document.getElementById(\'n_pasek\').style.display = \'none\'; else document.getElementById(\'n_pasek\').style.display = \'block\';"> Do not create thumbnails';
		}
		if (document.getElementById('n_pasek_chb').checked) {
			document.getElementById('n_pasek').innerHTML = '<input type="checkbox" name="n_pasek" id="n_pasek_chb" value="1" checked> Do not add the bottom bar in the thumbnail';
		}
		else {
			document.getElementById('n_pasek').innerHTML = '<input type="checkbox" name="n_pasek" id="n_pasek_chb" value="1"> Do not add the bottom bar in the thumbnail';
		}
		if (document.getElementById('ch_size_chb').checked) {
			document.getElementById('ch_size').innerHTML = '<input type="checkbox" name="ch_size" value="1" id="ch_size_chb" onClick="javascript:if(this.checked) document.getElementById(\'resize_div\').style.display = \'block\'; else document.getElementById(\'resize_div\').style.display = \'none\';" checked> Change the size of the picture';
		}
		else {
			document.getElementById('ch_size').innerHTML = '<input type="checkbox" name="ch_size" value="1" id="ch_size_chb" onClick="javascript:if(this.checked) document.getElementById(\'resize_div\').style.display = \'block\'; else document.getElementById(\'resize_div\').style.display = \'none\';"> Change the size of the picture';
		}
	}
	var html_code = '';
	for (i=1; i<=num_fields; i++) {
		html_code += 'Image <b>'+i+'</b>: <input name="up_file_'+i+'" type="file"><br />';
	}
	document.getElementById('files_form').innerHTML = html_code;
	return;
}