if (document.images) {
congo = new Image
consta = new Image
salgo = new Image
salsta = new Image
insgo = new Image
inssta = new Image
sergo = new Image
sersta = new Image
infgo = new Image
infsta = new Image
dolgo = new Image
dolsta = new Image
homgo = new Image
homsta = new Image


congo.src = "../pics/redchev.gif"
consta.src = "../pics/greychev.gif"
salgo.src = "../pics/redchev.gif"
salsta.src = "../pics/greychev.gif"
insgo.src = "../pics/redchev.gif"
inssta.src = "../pics/greychev.gif"
sergo.src = "../pics/redchev.gif"
sersta.src = "../pics/greychev.gif"
infgo.src = "../pics/redchev.gif"
infsta.src = "../pics/greychev.gif"
dolgo.src = "../pics/redchev.gif"
dolsta.src = "../pics/greychev.gif"
homgo.src = "../pics/redhom.gif"
homsta.src = "../pics/greyhom.gif"
}
        
function chgImg(imgField,newImg) {
if (document.images) {
document[imgField].src= eval(newImg + ".src")
}
}