web page error on main page help please
 

this is what i am getting and have no idea where to start to fix it.
here is copy of error. thank you in advance

Webpage error details
User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; WOW64; Trident/4.0; GTB6.4; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; .NET CLR 3.5.21022; .NET CLR 3.5.30729; .NET CLR 3.0.30729; yie8)
Timestamp: Thu, 22 Apr 2010 11:39:58 UTC

Message: Expected ';'
Line: 148
Char: 35
Code: 0
URI: http://nature2energy.com/

Message: Expected ')'
Line: 159
Char: 38
Code: 0
URI: http://nature2energy.com/