im=new Array();
imm=new Array();

im[0]=new Image;
imm[0]=new Image;
im[0].src="/images/b_about.gif";
imm[0].src="/images/b_about2.gif";

im[1]=new Image;
imm[1]=new Image;
im[1].src="/images/b_projects.gif";
imm[1].src="/images/b_projects2.gif";

im[2]=new Image;
imm[2]=new Image;
im[2].src="/images/b_investors.gif";
imm[2].src="/images/b_investors2.gif";

im[3]=new Image;
imm[3]=new Image;
im[3].src="/images/b_contact.gif";
imm[3].src="/images/b_contact2.gif";

function f1(n)
{
dd=eval("document.images.r"+n)
dd.src=imm[n].src
}

function f2(n)
{
dd=eval("document.images.r"+n)
dd.src=im[n].src
}