<!----
if (document.images) {           

// Instalaciones	
     ins_blank = new Image();
     ins_blank.src = "images/instalaciones/ins_blank.gif";
     ins_0 = new Image();
     ins_0.src = "images/instalaciones/ins_0.jpg";
     ins_1 = new Image();
     ins_1.src = "images/instalaciones/ins_1.jpg";
     ins_2 = new Image();
     ins_2.src = "images/instalaciones/ins_2.jpg";
     ins_3 = new Image();
     ins_3.src = "images/instalaciones/ins_3.jpg";
	 	 
}


/****************************************/

function img_opOn(name) {
   if (document.images) {
	  document["a_img"].src=eval(name).src;	
   }
}	

/****************************************/

function img_opOff(name) {
   if (document.images) {
	  document["a_img"].src=eval(name).src;	
   }
}


//-->