// JavaScript Document

function CalcularOro(form,valororo){
	if(form.peso.value.length == 0){
		alert("Debe introducir un peso");
	}else{
		
		v18k1g = valororo*0.730-3.60;
		v24k1g = valororo-3;
		
		valor18k = (form.peso.value*v18k1g);
		valor24k = (form.peso.value*v24k1g);
		
		form.valor18k.value = valor18k.toFixed(2)-3;
		form.valor24k.value = valor24k.toFixed(2);
		
	}
	
}


/*Fucniones AJAX*/

function objetoAjax(){
	var xmlhttp=false;
	try{
		xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
	}catch(e){
		try{
		   xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
		}catch(E){
			xmlhttp = false;
  		}
	}

	if(!xmlhttp && typeof XMLHttpRequest!='undefined'){
		xmlhttp = new XMLHttpRequest();
	}
	return xmlhttp;
}