if (document.images)
{
	about_btn=new Image(); about_btn.src="images/about_btn.gif"
	about_btn_o=new Image(); about_btn_o.src="images/about_btn_o.gif"
	products_btn=new Image(); products_btn.src="images/products_btn.gif"


	products_btn_o=new Image(); products_btn_o.src="images/products_btn_o.gif"


	services_btn=new Image(); services_btn.src="images/services_btn.gif"


	services_btn_o=new Image(); services_btn_o.src="images/services_btn_o.gif"


	portfolio_btn=new Image(); portfolio_btn.src="images/portfolio_btn.gif"


	portfolio_btn_o=new Image(); portfolio_btn_o.src="images/portfolio_btn_o.gif"


	resources_btn=new Image(); resources_btn.src="images/resources_btn.gif"



	resources_btn_o=new Image(); resources_btn_o.src="images/resources_btn_o.gif"

	contact_btn=new Image(); contact_btn.src="images/contact_btn.gif"


	contact_btn_o=new Image(); contact_btn_o.src="images/contact_btn_o.gif"



}



function mouseover(imageName)


{


	if (document.images)


	{


		document[imageName].src=eval(imageName+"_btn_o.src")


	}


}



function mouseout(imageName)


{


	if (document.images)


	{


		document[imageName].src=eval(imageName+"_btn.src")


	}


}