//constantes
var D=document
//contadores
var x,i,j,n
//api p2
var sb_File={
	Import:function(t){
		var oFile=D.createElement("script");oFile.type="text/javascript";oFile.src=t+".js"
		return sb_Tag("head",0).appendChild(oFile)
	}
}
//api p2
function sb_Id(n){return D.getElementById(n)}
function sb_Tag(t,n){return D.getElementsByTagName(t)[n]}
function sb_Value(t,n,v){return sb_Tag(t,n).childNodes[v].nodeValue}
function sb_TNode(node){return D.createTextNode(node)}
String.prototype.trim=function(){var s=this; s=s.replace(/\s+/gi,'');s=s.replace(/^\s+|\s+$/gi,'');return s;}
String.prototype.clipText=function(rec){var txt=this; if(txt.length>rec){txt=txt.substring(rec)+"..."};return txt;}
var vNum=/^(\d+)$/, vNumDec=/^([\d,]+)$/;
var vMail=/^[\w][\w\-\.]*@[\w\-\.]+\.[a-z]{2,4}/i; //chequeo de la dirección de correo
var vDate=/^(0?\d|1\d|2\d|3[0-1])\/(0?\d|1[0-2])\/\d{4}$///formato fecha
var vUser=/^([a-z0-9]+)$/i