imgArray=new Array();
imgArray[0]=new Image();
imgArray[0].src="images/links_down.gif"
imgArray[1]=new Image();
imgArray[1].src="images/links_down.gif"
imgArray[2]=new Image();
imgArray[2].src="images/links_down.gif"
imgArray[3]=new Image();
imgArray[3].src="images/links_down.gif"
imgArray[4]=new Image();
imgArray[4].src="images/links_down.gif"
imgArray[5]=new Image();
imgArray[5].src="images/links_down.gif"
imgArray[6]=new Image();
imgArray[6].src="images/links_down.gif"
imgArray[7]=new Image();
imgArray[7].src="images/links_down.gif"
imgArray[8]=new Image();
imgArray[8].src="images/links_down.gif"
imgArray[9]=new Image();
imgArray[9].src="images/links_down.gif"
imgArray[10]=new Image();
imgArray[10].src="images/links_down.gif"
imgArray[11]=new Image();
imgArray[11].src="images/links_down.gif"
imgArray[12]=new Image();
imgArray[12].src="images/links_down.gif"
imgArray[13]=new Image();
imgArray[13].src="images/links_down.gif"
imgArray[14]=new Image();
imgArray[14].src="images/links_down.gif"
imgArray[15]=new Image();
imgArray[15].src="images/links_down.gif"

imgArray[19]=new Image();
imgArray[19].src="images/petrochemicalsnav_down.gif"

imgArray[20]=new Image();
imgArray[20].src="images/portship_down.gif"
imgArray[21]=new Image();
imgArray[21].src="images/oilgas_down.gif"
imgArray[22]=new Image();
imgArray[22].src="images/pollutioncon_down.gif"
imgArray[23]=new Image();
imgArray[23].src="images/Forging_down.gif"
imgArray[24]=new Image();
imgArray[24].src="images/powerequip_down.gif"
imgArray[25]=new Image();
imgArray[25].src="images/left_navigation_down.gif"
imgArray[26]=new Image();
imgArray[26].src="images/left_navigation_down.gif"
imgArray[27]=new Image();
imgArray[27].src="images/left_navigation_down.gif"

imgArray[28]=new Image();
imgArray[28].src="images/product_arrow_down.gif"
imgArray[29]=new Image();
imgArray[29].src="images/product_arrow_down.gif"
imgArray[30]=new Image();
imgArray[30].src="images/product_arrow_down.gif"

imgArray[31]=new Image();
imgArray[31].src="images/oilgas_down.gif"

function chImg(id,j)
{ 
    orig=document.images[id].src;
    document.images[id].src=imgArray[j].src
}

function resImg(id)
{
    document.images[id].src=orig
}