/***** Inicio del Loading ********/

	  var myWidth = 0, myHeight = 0;
	  if( typeof( window.innerWidth ) == 'number' ) {
		//Non-IE
		myWidth = window.innerWidth;
		myHeight = window.innerHeight;
	  } else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
		//IE 6+ in 'standards compliant mode'
		myWidth = document.documentElement.clientWidth;
		myHeight = document.documentElement.clientHeight;
	  } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
		//IE 4 compatible
		myWidth = document.body.clientWidth;
		myHeight = document.body.clientHeight;
	  }
	  myWidth = myWidth/2;
	  myHeight = myHeight/2;
	  document.write("<div align=\"left\"  id= \"loading_web\" class=\"home\" style=\"position: absolute; left: " + myWidth + "px; top: " + myHeight + "px\" >");
	  //document.write(" Loading...");
	  document.write("<img src='imagen/loading.gif' width='220' height='19'>");
	  document.write("</div>");	 
 

   function loading_web(){  
		document.getElementById('loading_web').style.display = 'none'; 
   } 
   
   function loading_web_visible(){  
		document.getElementById('loading_web').style.display = 'block'; 
   }    
/***** Fin del Loading ********/