function randomimage()
{
	random_number = Math.round(Math.random()*3)+1;

	if (random_number=="1") { document.write("<img src=\"/img/front_img_1.jpg\" class=\"front-img\" />"); }
	if (random_number=="2") { document.write("<img src=\"/img/front_img_2.jpg\" class=\"front-img\" />"); }
	if (random_number=="3") { document.write("<img src=\"/img/front_img_3.jpg\" class=\"front-img\" />"); }
	if (random_number=="4") { document.write("<img src=\"/img/front_img_3.jpg\" class=\"front-img\" />"); }
}

function MM_effectSlide(targetElement, duration, from, to, toggle)
{
	Spry.Effect.DoSlide(targetElement, {duration: duration, from: from, to: to, toggle: toggle });
}

function toggle_bg() 
{
	var x = document.getElementById('tjansterlabel');
	var y = x.getElementsByTagName('a');

	if (y[0].style.backgroundImage == "url(/img/menu_bg_0.gif)")
	{
		var x = document.getElementById('produkterlabel');
		var y = x.getElementsByTagName('a');
		y[0].style.backgroundImage = "url(/img/menu_bg_1.gif)";
		
		var x = document.getElementById('tjansterlabel');
		var y = x.getElementsByTagName('a');
		y[0].style.backgroundImage = "url(/img/menu_bg_1.gif)";
		
		var x = document.getElementById('bannerlabel');
		var y = x.getElementsByTagName('a');
		y[0].style.backgroundImage = "url(/img/menu_banner_bg_1.gif)";
	}
	else
	{
		var x = document.getElementById('produkterlabel');
		var y = x.getElementsByTagName('a');
		y[0].style.backgroundImage = "url(/img/menu_bg_0.gif)";
			
		var x = document.getElementById('tjansterlabel');
		var y = x.getElementsByTagName('a');
		y[0].style.backgroundImage = "url(/img/menu_bg_0.gif)";
			
		var x = document.getElementById('bannerlabel');
		var y = x.getElementsByTagName('a');
		y[0].style.backgroundImage = "url(/img/menu_banner_bg_0.gif)";
	}
	toggle.start();
}

function removeSpaces (varr)
{
	varr.value = varr.value.replace(/\s/g, '');
}

function validate_required(field,alerttxt)
{
	with (field)
	{
		if (value==null||value=="")
		{
			return false;
		}
		else 
		{
			return true
		}
	}
}

function validate_contactform(thisform)
{
	with (thisform)
	{
		if (validate_required(realname)==false)
		{
			alert("Du måste fylla i fältet Namn");
			return false;
		}
		if (validate_required(telefon)==false)
		{
			if(validate_required(email)==false)
			{
				alert("Du måste fylla i fältet Telefon eller E-post");
				return false;
			}
		}
	}
}