function CreaAjax()
{
	var objetoAjax=false;
	try {
			objetoAjax = new ActiveXObject("Msxml2.XMLHTTP");
		} 
		catch (e) 
		{
			try 
			{
				objetoAjax = new ActiveXObject("Microsoft.XMLHTTP");
			}
			catch (E) 
			{
				objetoAjax = false;
			}
		}
	if (!objetoAjax && typeof XMLHttpRequest!='undefined') 
	{
		objetoAjax = new XMLHttpRequest();
	}
	return objetoAjax;
}
function ejecutar_ajax(url,capa,valores,metodo)
{
  
	var ajax=CreaAjax();	 
	var capaContenedora = document.getElementById(capa);
	
	if(metodo.toUpperCase()=='POST')
	{
			ajax.open ('POST', url, true);
			ajax.onreadystatechange = function() 
							{
								if (ajax.readyState==1) 
								{
									capaContenedora.innerHTML="<img src='ajax-loader.gif'>";
								}
								else if (ajax.readyState==4)
								{
									if(ajax.status==200)
									{
										document.getElementById(capa).innerHTML=ajax.responseText;
									}
									else if(ajax.status==404)
									{
										capaContenedora.innerHTML = "La direccion no existe";
									}
									else
									{
										capaContenedora.innerHTML = "Error: "+ajax.status;
									}
								}
							}
			ajax.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
			ajax.send(valores);
			return;
	}
	if (metodo.toUpperCase()=='GET')
	{
		ajax.open ('GET', url, true);
		ajax.onreadystatechange = function() 
			{
				if (ajax.readyState==1) 
				{
					capaContenedora.innerHTML="Cargando.......";
				}
				else if (ajax.readyState==4)
				{
					if(ajax.status==200)
					{
						document.getElementById(capa).innerHTML=ajax.responseText;
					}
					else if(ajax.status==404)
					{
						capaContenedora.innerHTML = "La direccion no existe";
					}
					else
					{
						capaContenedora.innerHTML = "Error: "+ajax.status;
					}
				}
			}
			ajax.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
			ajax.send(valores);
			return
	}
}

function cargar_pagina(auxUr1, auxDiv, auxVar, auxTipo){
   
	$.ajax({
        type: auxTipo,
        url: auxUr1,
        data: auxVar,
		dataType: "html",
		async: true,
        
        success: function(datoHtml){
             $("#"+auxDiv).html(datoHtml);
			
        }
	});
}

function roundNumber(number,decimals) {
	var newString;// The new rounded number
	decimals = Number(decimals);
	if (decimals < 1) {
		newString = (Math.round(number)).toString();
	} else {
		var numString = number.toString();
		if (numString.lastIndexOf(".") == -1) {// If there is no decimal point
			numString += ".";// give it one at the end
		}
		var cutoff = numString.lastIndexOf(".") + decimals;// The point at which to truncate the number
		var d1 = Number(numString.substring(cutoff,cutoff+1));// The value of the last decimal place that we'll end up with
		var d2 = Number(numString.substring(cutoff+1,cutoff+2));// The next decimal, after the last one we want
		if (d2 >= 5) {// Do we need to round up at all? If not, the string will just be truncated
			if (d1 == 9 && cutoff > 0) {// If the last digit is 9, find a new cutoff point
				while (cutoff > 0 && (d1 == 9 || isNaN(d1))) {
					if (d1 != ".") {
						cutoff -= 1;
						d1 = Number(numString.substring(cutoff,cutoff+1));
					} else {
						cutoff -= 1;
					}
				}
			}
			d1 += 1;
		} 
		if (d1 == 10) {
			numString = numString.substring(0, numString.lastIndexOf("."));
			var roundedNum = Number(numString) + 1;
			newString = roundedNum.toString() + '.';
		} else {
			newString = numString.substring(0,cutoff) + d1.toString();
		}
	}
	if (newString.lastIndexOf(".") == -1) {// Do this again, to the new string
		newString += ".";
	}
	var decs = (newString.substring(newString.lastIndexOf(".")+1)).length;
	for(var i=0;i<decimals-decs;i++) newString += "0";
	//var newNumber = Number(newString);// make it a number if you like
	return newString;
	//document.roundform.roundedfield.value = newString; // Output the result to the form field (change for your purposes)
}


function posicionar_datos_usuario()
{
	//alert(screen.width);

	switch (screen.width)
	{
		case 800:{document.getElementById('datos_usuario_logeado').style.left='85%';break;}
		
		case 1024:{document.getElementById('datos_usuario_logeado').style.left='67%';
				document.getElementById('datos_usuario_logeado').style.top='96%';break;}
				
		case 1280:{document.getElementById('datos_usuario_logeado').style.left='62%';
				document.getElementById('datos_usuario_logeado').style.top='93.5%';break;}
	}
	
	
}

function formulario_filtro()
{
	if(document.getElementById('formulario_de_filtro').style.display=='none')
	{
		document.getElementById('formulario_de_filtro').style.display='block';
	}
	else
	{
		document.getElementById('formulario_de_filtro').style.display='none'
	}
}

function form_filtro_ver_js()
{
	document.getElementById('formulario_de_filtro').style.display='block';
}

function ocultar_tipo_cambio()
{
	
	if(egr_tipo.value=="DOLARES")
	{
		document.getElementById('tipo_cambio_texto').style.display='block';
		document.getElementById('tipo_cambio_caja_texto').style.display='block';
	}
	else
	{
		document.getElementById('tipo_cambio_texto').style.display='none'
		document.getElementById('tipo_cambio_caja_texto').style.display='none'
	}
}