function cargarurl(dest,destino)  
{
try {
xmlhttp = window.XMLHttpRequest?new XMLHttpRequest(): new ActiveXObject("Microsoft.XMLHTTP");
       }
catch (e) {}
xmlhttp.onreadystatechange = function() {
if(xmlhttp.readyState ==1)
{
document.getElementById(destino).innerHTML ='<table height="100%" width="100%"><tr><td align="center"><img src="http://www.yucatan.com.mx/libreria/images/loading2.gif"> <br>Cargando, por favor espere...</td></tr></table>';
}
if ((xmlhttp.readyState == 4) && (xmlhttp.status == 200)) {
document.getElementById(destino).innerHTML = xmlhttp.responseText;
}
}
xmlhttp.open("GET",dest);
xmlhttp.send(null);
}

function abrir_ventana(ruta,al,an,nombre_vent)
{

ancho=an;
alto=al;
ancho_pant=(screen.width)/8;
alto_pant=(screen.height)/8;

if(al==0){alto=792;}
if(an==0){ancho=730;}

if(nombre_vent==''){ventana_abrir='ventana';}
if(nombre_vent!=''){ventana_abrir=nombre_vent;}

ventana=this.window.open(ruta,ventana_abrir,'resizable=no,scrollbars=yes,menubar=no,left='+ancho_pant+',top='+alto_pant+',width='+ancho+',height='+alto+',');

}
var tooltip=function(){
	var id = 'tt';
	var top = 3;
	var left = 3;
	var maxw = 300;
	var speed = 10;
	var timer = 20;
	var endalpha = 95;
	var alpha = 0;
	var tt,t,c,b,h;
	var ie = document.all ? true : false;
	return{
		show:function(v,w){
			if(tt == null){
				tt = document.createElement('div');
				tt.setAttribute('id',id);
				t = document.createElement('div');
				t.setAttribute('id',id + 'top');
				c = document.createElement('div');
				c.setAttribute('id',id + 'cont');
				b = document.createElement('div');
				b.setAttribute('id',id + 'bot');
				tt.appendChild(t);
				tt.appendChild(c);
				tt.appendChild(b);
				document.body.appendChild(tt);
				tt.style.opacity = 0;
				tt.style.filter = 'alpha(opacity=0)';
				document.onmousemove = this.pos;
			}
			tt.style.display = 'block';
			c.innerHTML = v;
			tt.style.width = w ? w + 'px' : 'auto';
			if(!w && ie){
				t.style.display = 'none';
				b.style.display = 'none';
				tt.style.width = tt.offsetWidth;
				t.style.display = 'block';
				b.style.display = 'block';
			}
			if(tt.offsetWidth > maxw){tt.style.width = maxw + 'px'}
			h = parseInt(tt.offsetHeight) + top;
			clearInterval(tt.timer);
			tt.timer = setInterval(function(){tooltip.fade(1)},timer);
		},
		pos:function(e){
			var u = ie ? event.clientY + document.documentElement.scrollTop : e.pageY;
			var l = ie ? event.clientX + document.documentElement.scrollLeft : e.pageX;
			tt.style.top = (u - h) + 'px';
			tt.style.left = (l + left) + 'px';
		},
		fade:function(d){
			var a = alpha;
			if((a != endalpha && d == 1) || (a != 0 && d == -1)){
				var i = speed;
				if(endalpha - a < speed && d == 1){
					i = endalpha - a;
				}else if(alpha < speed && d == -1){
					i = a;
				}
				alpha = a + (i * d);
				tt.style.opacity = alpha * .01;
				tt.style.filter = 'alpha(opacity=' + alpha + ')';
			}else{
				clearInterval(tt.timer);
				if(d == -1){tt.style.display = 'none'}
			}
		},
		hide:function(){
			clearInterval(tt.timer);
			tt.timer = setInterval(function(){tooltip.fade(-1)},timer);
		}
	};
}();