function change_img(myIMG) {
		myIMG.src = "img/ln_blue.gif";
}
function upchange_img(myIMG) {
		myIMG.src = "img/ln.gif";
}
function doBlinkClass(myid)
{
 	var elm = document.getElementById(myid);
 	if(elm)
 	{
 		if(elm.className == "w1") elm.className = "w2";
 		else elm.className = "w1";
 	}
        
}