var copacity = 0;

function show_faq_form()
{
	copacity = copacity + 5;
	document.getElementById('ask_form').className = "percent" + copacity;
	if(copacity < 100) setTimeout("show_faq_form()", 25);
}

function hide_faq_form()
{
	copacity = copacity - 5;
	document.getElementById('ask_form').className = "percent" + copacity;
	if(copacity > 0) setTimeout("hide_faq_form()", 25);
}

var current_header = "";
var header_loading = 1;
var percent = 0;

function change_header()
{
	if(!header_loading)
	{
		header_loading = 1;
		if(current_header == "")
		{
			document.getElementById('header_loading_img').style.display = 'block';
			var imObj = new Image(1000, 604);			
			imObj.onload = function() {
				document.getElementById('header_loading_img').style.display = 'none';
				current_header = "i/header_content_cut.jpg";
				document.getElementById('temp_header_content').style.background = "url(" + current_header + ") 0 0 no-repeat";
				replace_headers();
			}
			imObj.src = "i/header_content_cut.jpg";
		}
		else
		{
			current_header = (current_header == "i/header_content_cut.jpg") ? "i/header_content.jpg": "i/header_content_cut.jpg";
			document.getElementById('temp_header_content').style.background = "url(" + current_header + ") 0 0 no-repeat";
			replace_headers();
		}
	}
}

function replace_headers()
{
	if(percent == 100)
	{
		percent = 0;
		document.getElementById('header_content').style.background = "url(" + current_header + ") 0 0 no-repeat";
		document.getElementById('temp_header_content').className = "percent0";
		header_loading = 0;
	}
	else
	{
		document.getElementById('temp_header_content').className = "percent" + percent;
		percent += 10;
		timeOut = setTimeout("replace_headers()", 25);
	}
}

function enable_header_loading()
{
	header_loading = 0;
}