// JavaScript Document
<!--
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function valida(){
	var retval = true;
	var userName = document.all.form1.userName.value;
	var userPass = document.all.form1.userPass.value;
	var Type = document.all.form1.type.value;
	if ((!validaCaract(Type)) || (!validaCaract(userPass)))
	{
		retval = false;
		msg = 'Invalid usercode';
	}
	if (!retval)
		alert(msg);
	else
		document.all.form1.submit();
		document.all.form1.userName.value = '';
	return true;
}
//---------------------------------------------------------
function validaCaract(cad){
	if ((cad.length > 0) && ((cad.indexOf('=') > 0) || (cad.indexOf("'") > 0))) return false;
		return true;	
}
//---------------------------------------------------------
function isDigit(e) {
	var charCode
	if (navigator.appName == "Netscape")				// me fijo 
		charCode = e.which											// leo la tecla en ASCII que ingreso
	else
		charCode = e.keyCode									// leo la tecla en ASCII que ingreso

	if(charCode == 13) return true;							//Cuando presiona ENTER 
	if (charCode < 48 || charCode > 57)
	{
		alert("Numbers Only")
		return false
	} 	
return true
}
//-->