// JavaScript Document

//for Letters to the Editor page only

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_validateForm() { //v4.0
  var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
  for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=MM_findObj(args[i]);
    if (val) { nm=val.name; if ((val=val.value)!="") {
      if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
        if (p<1 || p==(val.length-1)) errors+='- '+nm+' must contain an e-mail address.\n';
      } else if (test!='R') { num = parseFloat(val);
        if (isNaN(val)) errors+='- '+nm+' must contain a number.\n';
        if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
          min=test.substring(8,p); max=test.substring(p+1);
          if (num<min || max<num) errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';
    } } } else if (test.charAt(0) == 'R') errors += '- '+nm+' is required.\n'; }
  } if (errors) alert('The following error(s) occurred:\n'+errors);
  document.MM_returnValue = (errors == '');
}

function validate() {
	if ((document.getElementById("Subject").value == "Insert subject here")||(document.getElementById("Letter").value == "You can write your own message here, or choose from the above topics. Your name will automatically be added to the foot of this letter when you click SEND.")||(document.getElementById("Subject").value == "")||(document.getElementById("Letter").value == "")) {
		alert('You must choose or create a subject and letter before you can send.')
		return false;
	} else {
		return true;
	}
}

function checkrecipient() {
	if (document.getElementById("Recipient").value=="") {
		alert('Please choose who you would like to send your email to before continuing.');
		return false;
	} else {
		return true;
	}
}

function checkemail() {
	if ((document.getElementById("Email Address").value !== document.getElementById("Confirm Email Address").value)||((document.getElementById("Email Address").value == "")||(document.getElementById("Confirm Email Address").value == ""))) {
		alert('The email addresses you have entered do not match.\n\nPlease check what you have entered.');
		return false;
	} else {
		return true;
	}
}
function preflight() {
	var a = validate();
	var b = checkrecipient();
	var c = checkemail();
	if ((a==true)&&(b==true)&&(c==true)) {
		return true;
	} else {
		return false;
	}
}

// coming from Censorship article, choose couriermail as default

function getValue(varname)
{
  var url = window.location.href;
  var qparts = url.split("?");
  if (qparts.length==0)
  {
    return "";
  }
  var query = qparts[1];
  if (!query) {
	return "";
  }
  var vars = query.split("&");
  var value = "";
  for (i=0;i<vars.length;i++)
  {
    var parts = vars[i].split("=");
    if (parts[0] == varname)
    {
      value = parts[1];
      break;
    }
  }
  value = unescape(value);
  value.replace(/\+/g," ");  
  return value;
}

function choose() {
	if (getValue('defaultnp') !== ""){
		var rn=Math.floor(Math.random()*2)
		if (rn == 0) {
			window.location="resources/advocacy/state.htm?defaultrp=ab";
		} else if (rn == 1) {
			document.getElementById("Recipient").selectedIndex=0;
			letters('censorshipOfLawyers');
		}
	}
}