function isMailOk(textObj){
var mail=textObj.value;
    if (mail.match(/^[A-Za-z0-9-_\.]+?@([A-Za-z0-9-_]+?)(\.[A-Za-z_]+)*(\.[A-Za-z_]{2,})+$/i)) 
        return false;
    else
        return true;
}

function emptyField(textObj){
     if (textObj.value.length == 0) return true;
     for (var i=0; i<textObj.value.length; ++i) {
          var ch = textObj.value.charAt(i);
          if (ch != ' ' && ch != '\t') return false;
     }
     return true;
}


function check()
{
var error = 0;
var error_message='';




if (emptyField(document.form1.name))
{
	error_message = error_message + " - Please enter your Name\n";
	error=1;
}


if (isMailOk(document.form1.email))
{
	error_message = error_message + " - Please enter your Email Address correctly\n";
	error=1;
}


if (emptyField(document.form1.address))
{
	error_message = error_message + " - Please enter your Address\n";
	error=1;
}

if (emptyField(document.form1.city))
{
	error_message = error_message + " - Please enter your City\n";
	error=1;
}

if (emptyField(document.form1.state))
{
	error_message = error_message + " - Please enter your State\n";
	error=1;
}

if (emptyField(document.form1.zip))
{
	error_message = error_message + " - Please enter your ZIP code\n";
	error=1;
}

if (emptyField(document.form1.phone))
{
	error_message = error_message + " - Please enter your Phone number\n";
	error=1;
}


  if (error == 1) {

    alert(error_message);
    return false;
  } else {
    return true;
  }
}