//Desarrollado por Damián Buonamico - damisoft@hotmail.com
function popup(url,x,y) {
	var ventana = window.open(url,eval(x*y),'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,width='+eval(parseInt(x)+25)+',height='+eval(parseInt(y)+25));
	if( navigator.appName.substring(0,8) == "Netscape" ){
		ventana.location = url;
	}
}

function popupscroll(url,x,y) {
	var ventana = window.open(url,eval(x*y),'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=0,width='+eval(parseInt(x)+25)+',height='+eval(parseInt(y)+25));
	if( navigator.appName.substring(0,8) == "Netscape" ){
		ventana.location = url;
	}
}

function isEmpty(s)	{
   return ((s == null) || (s.length == 0))
}

function isWhitespace (s) {
  var i;
 	  if (isEmpty(s)) return true;
 	   for (i = 0; i < s.length; i++) {
 	       var c = s.charAt(i);
 	       if (whitespace.indexOf(c) == -1) return false;
 	   }
       return true;
}

function isEmail (s) {
           if (isEmpty(s))
           if (isWhitespace(s)) return true;
           var i = 1;
           var sLength = s.length;
           while ((i < sLength) && (s.charAt(i) != "@")) { i++ }
           if ((i >= sLength) || (s.charAt(i) != "@")) return false;
           else i += 2;
           while ((i < sLength) && (s.charAt(i) != ".")) { i++ }
           if ((i >= sLength - 1) || (s.charAt(i) != ".")) return false;
           else return true;
}

function validabuscar(src) {
	if (src.clave.value == "") {
		alert("Escriba la palabra que desea buscar");
		return false;
	}
}

function validaselect(src) {
	if (src.value == "--") {
		alert("Seleccione una opción del menú desplegable.");
		return false;
	}
}