function checkform(formlogin){	
	if ((formlogin.email.value == "")){
	    	alert("You must enter your email address.");
	return false;
	}
	if (formlogin.email.value.indexOf("@") == -1 ||
            formlogin.email.value == "" ||
            formlogin.email.value.indexOf(".") == -1)
        {
        alert("Please include a proper email address.");
        return false;
        
        }
		if ((formlogin.password.value == "")){
	    	alert("You must enter your password.");
	return false;
	}
}

function changeselectcountry(value)
{
  var us="visible";
  var ost = "hidden";
  var cmpname = "";
  if (value!="UNITED STATES")
    {
    us = "hidden";
    ost = "visible"
    }
  for(i=0; i<document.forms.length; i++)
  {
    for(j=0; j<document.forms[i].length; j++)
      {
      cmpname = document.forms[i].elements[j].name.toUpperCase();
      if (cmpname.indexOf("USSTATE")>-1)
        {
        document.forms[i].elements[j].style.visibility = us;
        }
      if (cmpname.indexOf("OSTATE")>-1)
        {
        document.forms[i].elements[j].style.visibility = ost;
        //document.forms[i].elements[j].style.position="relative";
        //document.forms[i].elements[j].style.left="-200px";
        }
      }
  }
  return;
}

function checkqty(valor){
var valreturn = false;
  if(isNaN(valor))
    valreturn = false;
  else
    {
    valreturn = parseFloat(valor)>0;
    }
if (valreturn == false)
  alert("must enter the quantity amount greater than cero...");
return valreturn;
}