function st(v) {
	window.status=v;
}

function IsNumeric(sText) {
   var ValidChars = "0123456789";
   var Char;
   for (i = 0; i < sText.length; i++) { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) return false;
   }
   return true;
}

function soloNumeros(e,que)
{
var keynum
var keychar
var numcheck
if(window.event) // IE
{ keynum = e.keyCode }
else if(e.which) // Netscape/Firefox/Opera
{ keynum = e.which }
if (keynum==46) {
 var a=document.getElementById(que).value;
 return a.indexOf(".")==-1;
}
keychar = String.fromCharCode(keynum)
numcheck = /\d/
return numcheck.test(keychar)
}