var img_loaded = 0

function images_preload()
{
	arrow_expand = new Image;
	arrow_expand.src = '/sites/laureus/images/new/arrow_down.gif';

	arrow_collapse = new Image;
	arrow_collapse.src = '/sites/laureus/images/new/arrow_down.gif';

	block_expand = new Image;
	block_expand.src = '/sites/laureus/images/down_block.gif';

	block_collapse = new Image;
	block_collapse.src = '/sites/laureus/images/up_block.gif';

	prkit_expand = new Image;
	prkit_expand.src = '/sites/laureus/images/prkit_top.gif';

	prkit_collapse = new Image;
	prkit_collapse.src = '/sites/laureus/images/prkit_down.gif';
	
	img_loaded = 1;
}
function news_switch()
{
	if (byid('newsletter_body').style.display == 'none')
	{
		news_show();
	}
	else
	{
		news_hide();
	}
}

function news_hide()
{
	if (img_loaded)
	{
		byid('expand_img').src = block_collapse.src;
	}
	
	byid('newsletter_body').style.display = 'none';
}

function news_show()
{
	if (img_loaded)
	{
		byid('expand_img').src = block_expand.src;
	}
	
	byid('newsletter_body').style.display = '';
}
function intro_switch()
{
	if (byid('welcome_message').style.display == 'none')
	{
		intro_show();
	}
	else
	{
		intro_hide();
	}
}

function intro_hide()
{
	if (img_loaded)
	{
		byid('expand_img').src = arrow_expand.src;
	}
	
	byid('welcome_message').style.display = 'none';
}

function intro_show()
{
	if (img_loaded)
	{
		byid('expand_img').src = arrow_collapse.src;
	}
	
	byid('welcome_message').style.display = '';
}
function content_switch()
{
	if (byid('content_text').style.display == 'none')
	{
		content_show();
	}
	else
	{
		content_hide();
	}
}

function content_hide()
{
	if (img_loaded)
	{
		byid('c_expand_img').src = arrow_expand.src;
	}
	
	byid('content_text').style.display = 'none';
}

function content_show()
{
	if (img_loaded)
	{
		byid('c_expand_img').src = arrow_collapse.src;
	}
	
	byid('content_text').style.display = '';
}

function article_switch()
{
	if (byid('article_text').style.display == 'none')
	{
		article_show();
	}
	else
	{
		article_hide();
	}
}

function article_hide()
{
	if (img_loaded)
	{
		byid('a_expand_img').src = arrow_expand.src;
	}
	
	byid('article_text').style.display = 'none';
}

function article_show()
{
	if (img_loaded)
	{
		byid('a_expand_img').src = arrow_collapse.src;
	}
	
	byid('article_text').style.display = '';
}

function image_switch()
{
	if (byid('image_text').style.display == 'none')
	{
		image_show();
	}
	else
	{
		image_hide();
	}
}

function image_hide()
{
	if (img_loaded)
	{
		byid('i_expand_img').src = arrow_expand.src;
	}
	
	byid('image_text').style.display = 'none';
}

function image_show()
{
	if (img_loaded)
	{
		byid('i_expand_img').src = arrow_collapse.src;
	}
	
	byid('image_text').style.display = '';
}

function box_newsletter_expand()
{
	byid('newsletter_cont').style.display = '';
	byid('newsletter_arrow_expand').style.display = 'none';
	byid('newsletter_arrow_collapse').style.display = '';
}

function box_newsletter_collapse()
{
	byid('newsletter_cont').style.display = 'none';
	byid('newsletter_arrow_expand').style.display = '';
	byid('newsletter_arrow_collapse').style.display = 'none';
}


function prkit_switch()
{
	if (byid('prkit_body').style.display == 'none')
	{
		prkit_show();
	}
	else
	{
		prkit_hide();
	}
}

function prkit_hide()
{
	if (img_loaded)
	{
		byid('expand_img').src = prkit_collapse.src;
	}
	
	byid('prkit_body').style.display = 'none';
}

function prkit_show()
{
	if (img_loaded)
	{
		byid('expand_img').src = prkit_expand.src;
	}
	
	byid('prkit_body').style.display = '';
}

function checkUploadType() {
	if ($('filelist').selectedIndex >= 0 && $('edit-upload').value != '') {
		if (window.confirm("You can upload only one file. \nPlease check 'Attach new file' and 'Select file from the list' fields.\nShould I deselect file from 'Select file from the list'?")) {
			$('filelist').selectedIndex = -1;
		}
		return false;
	}
	return true;
}