href is a property of both the Link and the Location objects and is a string specifying the entire URL, of which all other properties are substrings. If you wish to change a location, you can safely do so by setting the href property. Assuming your current window to be the URL...

http://home.newco.com/products/enquiries.htm#local?email=name@otherco.com

...you could find out the href property as follows:

Code:
document.write(location.href)

Output:
http://home.newco.com/products/enquiries.htm#local?email=name@otherco.com