function show_service(num)
{
	sub_hide(num);
	
	document.getElementById('service_html_'+num).style.display = 'inline';
	document.getElementById('service_title_'+num).style.color = '#AE2B71';
}

function hide_service(num)
{
	document.getElementById('service_html_'+num).style.display = 'none';
	document.getElementById('service_title_'+num).style.color = '#6D6969';
}

function show_preview(num)
{
	document.getElementById('preview_'+num).style.visibility = 'visible';
}

function hide_preview(num)
{
	document.getElementById('preview_'+num).style.visibility = 'hidden';
}

function show_under_bar()
{
	document.getElementById("under_cover").style.opacity = 0.7;
	document.getElementById("under_cover").style.filter = "progid:DXImageTransform.Microsoft.Alpha(opacity="+(70)+")";
}

function show_b_image(num)
{
	show_under_bar();
	
	document.getElementById("under_cover").style.top = 0;
	document.getElementById("under_cover").style.left = 0;
	document.getElementById("under_cover").style.height = document.body.scrollHeight;
	document.getElementById("under_cover").style.width = document.body.scrollWidth;
	
	document.getElementById("under_cover").style.visibility = "visible";
	
	document.getElementById("big_img_"+num).style.top = document.body.scrollTop + ((document.body.clientHeight - document.getElementById("big_img_"+num).scrollHeight)/2);
	document.getElementById("big_img_"+num).style.left = (document.body.clientWidth/2)-(document.getElementById("large_w_"+num).value/2);
	document.getElementById("big_img_"+num).style.visibility = "visible";
}

function hide_b_image(num)
{
	document.getElementById("big_img_"+num).style.visibility="hidden";
	document.getElementById("under_cover").style.visibility = "hidden";
}

function f_comment_show()
{
	if (document.getElementById('comment_show').value == 'hidden')
	{
		document.getElementById('comment_show_form').style.visibility = 'visible';
		document.getElementById('comment_show').value = 'visible';
	}
	else
	{
		document.getElementById('comment_show_form').style.visibility = 'hidden';
		document.getElementById('comment_show').value = 'hidden';
	}
}