function ch(imgname,state,div)
{
	dir="./img/";
	if (document.layers && div) {document.layers[div].document.images[imgname].src=dir+imgname+state+".gif";}
	else {document.images[imgname].src=dir+imgname+state+".gif";}
}

function pl(imgname)
{
	dir="./img/";
	eval(imgname+"=new Image();"+imgname+".src='"+dir+imgname+".gif';");
}