function checkKontakt()
{
	var e = 0;
	var arr = new Array('name', 'email', 'betreff', 'text');
	
	for(var i = 0; i < arr.length; i++)
	{
		var elm = document.getElementsByName(arr[i])[0];
		
		if(arr[i] != 'email')
		{
			if(elm.value.length == 0)
			{
				$(elm).css({borderColor: '#f00'});
				e = 1;
			}
			else
			{
				$(elm).css({borderColor: '#7c7c7c'});
			}
		}
		else
		{
			if(elm.value.indexOf('@') == -1 || elm.value.indexOf('.') == -1)
			{
				$(elm).css({borderColor: '#f00'});
				e = 1;
			}
			else
			{
				$(elm).css({borderColor: '#7c7c7c'});
			}
		}
	}
	
	if(e == 0)
	{
		document.getElementsByName('form')[0].submit();
	}
}