function CambiaHome(cual) {
	
	for(i=1; i<5; i++) {
	
		if(cual==i) {
		
			document.getElementById("imagenprincipal"+i).style.display = "block";
			document.getElementById("flecha"+i).style.background = "url(/img/link-on.png) repeat-x";
			document.getElementById("flecha"+i).style.color = "#000000";			

		}
		else
		{
			document.getElementById("imagenprincipal"+i).style.display = "none";
			document.getElementById("flecha"+i).style.background = "url(/img/link-off.png) no-repeat right top";
			document.getElementById("flecha"+i).style.color = "#FFFFFF";	
			
		}
		
	}
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}