function cambiaImg(pathImg) {
	
	if(document.getElementById){//IE6 - NN6 - Opera
		var obj = document.getElementById("dvCambioImg");
		obj.style.backgroundImage='url('+pathImg+')';
 		obj.style.backgroundPosition='center center';
 		obj.style.backgroundRepeat='no-repeat';
 	   }
 	   
 	  if(document.all){//IalE4
 	  	document.all["dvCambioImg"].style.backgroundImage='url('+pathImg+')';
 		document.all["dvCambioImg"].style.backgroundPosition='center center';
 		document.all["dvCambioImg"].style.backgroundRepeat='no-repeat';
 	   }
 	   
 	   if(document.layers){//NN4
 	   	document.layers["dvCambioImg"].style.backgroundImage='url('+pathImg+')';
 		document.layers["dvCambioImg"].style.backgroundPosition='center center';
 		document.layers["dvCambioImg"].style.backgroundRepeat='no-repeat';
 	   }

 
 
}