function random_images(nest,imag)
	{
		this.imag=imag;
		var arch;
		var ran_number=Math.round(Math.random()*6); 
		ran_number++;
		arch="img"+ran_number+".jpg";
	
	if(bw.dom) document.getElementById(imag).src="/images/randomimg/"+arch;
		else if(bw.ie4) document.all[imag].src="/images/randomimg/"+arch;
			else if(bw.ns4) document.eval(nest+imag).src="/images/randomimg/"+arch;
				

	}