function imgch(ig,num){
var imgs = new Array();
imgs[0]=new Image();imgs[0].src="images/soc_m_on.gif";
imgs[1]=new Image();imgs[1].src="images/soc_m.gif";
imgs[2]=new Image();imgs[2].src="images/ser_m_on.gif";
imgs[3]=new Image();imgs[3].src="images/ser_m.gif";
imgs[4]=new Image();imgs[4].src="images/pro_m_on.gif";
imgs[5]=new Image();imgs[5].src="images/pro_m.gif";
imgs[6]=new Image();imgs[6].src="images/con_m_on.gif";
imgs[7]=new Image();imgs[7].src="images/con_m.gif";
imgs[8]=new Image();imgs[8].src="images/par_m_on.gif";
imgs[9]=new Image();imgs[9].src="images/par_m.gif";
ig.src=imgs[num].src;
}

function menu1(lnk){
lnk.style.background="#cccccc";
}
function menu2(lnk){
lnk.style.background="#E5E5E5";
}
function menu3(lnk){
lnk.style.color="#ffff40";
}
function menu4(lnk){
lnk.style.color="#ffffff";
}