function imgOn(imgName)
{if (document.images) {document[imgName].src=eval(imgName+"on.src");}}

function imgOff(imgName)
{if (document.images) {document[imgName].src=eval(imgName+"off.src");}}

if (document.images)
{
portfolioon=new Image(); portfolioon.src="../img/snav_l1_ourportfolio_over.gif";
portfoliooff=new Image(); portfoliooff.src="../img/snav_l1_ourportfolio_off.gif";

common=new Image(); common.src="../img/snav_port_entsoft_over.gif";
commoff=new Image(); commoff.src="../img/snav_port_entsoft_off.gif";

semicondcompon=new Image(); semicondcompon.src="../img/snav_port_semi_over.gif";
semicondcompoff=new Image(); semicondcompoff.src="../img/snav_port_semi_off.gif";

interinfraon=new Image(); interinfraon.src="../img/snav_port_dm_over.gif";
interinfraoff=new Image(); interinfraoff.src="../img/snav_port_dm_off.gif";

softwareon=new Image(); softwareon.src="../img/snav_port_teleequip_over.gif";
softwareoff=new Image(); softwareoff.src="../img/snav_port_teleequip_off.gif";

enterinfraon=new Image(); enterinfraon.src="../img/snav_port_teleserv_over.gif";
enterinfraoff=new Image(); enterinfraoff.src="../img/snav_port_teleserv_off.gif";

}