/*
change image on mouseover and click
*/
function mEvent(id,img1,img2,img3) {
var i = new String();
i = document.images[id].src;
document.images[id].src = i.replace(img2,img1);
//for click condition
if(document.images[id].src.indexOf(img3)!=-1)
document.images[id].src = i.replace(img3,img1);
}
