function swapon1()
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 }
function swapoff1()
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      document.img1.src="img/navig1.gif";

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function swapon2()
 {
      document.img2.src="img/navigr2.gif";

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function swapoff2()
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      document.img2.src="img/navig2.gif";

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function swapon3()
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      document.img3.src="img/navigr3.gif";

 }
function swapoff3()
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      document.img3.src="img/navig3.gif";

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function swapon4()
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      document.img4.src="img/navigr4.gif";

 }
function swapoff4()
 {
      document.img4.src="img/navig4.gif";

 }

function swapon5()
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      document.img5.src="img/navigr5.gif";

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function swapoff5()
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      document.img5.src="img/navig5.gif";

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function swapon6()
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      document.img6.src="img/navigr6.gif";

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function swapoff6()
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      document.img6.src="img/navig6.gif";

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function swapon7()
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      document.img7.src="img/navigr7.gif";

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function swapoff7()
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      document.img7.src="img/navig7.gif";

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function swapon8()
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      document.img8.src="img/navigr8.gif";

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function swapoff8()
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      document.img8.src="img/navig8.gif";

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function swapon9()
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function swapoff9()
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      document.img9.src="img/navig9.gif";

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function swapon10()
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      document.img10.src="img/navigr10.gif";

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function swapoff10()
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      document.img10.src="img/navig10.gif";

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function swapon11()
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      document.img11.src="img/navigr11.gif";

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function swapoff11()
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      document.img11.src="img/navig11.gif";

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