//validates the length of a text area and displays a message
//if the length is too large
function validateTextArea(textArea, maxSize, message)
{
  	if (textArea.value.length > maxSize){
    	alert(message);
    	return false;
  	}
  	return true;
}

function trim(inputString) {
    if (typeof inputString != "string") { return inputString; }
    var retValue = inputString;
    var ch = retValue.substring(0, 1);
    while (ch == " ") { 
        // Check for spaces at the beginning of the string
        retValue = retValue.substring(1, retValue.length);
        ch = retValue.substring(0, 1);
    }
    ch = retValue.substring(retValue.length-1, retValue.length);
    while (ch == " ") { 
        // Check for spaces at the end of the string
        retValue = retValue.substring(0, retValue.length-1);
        ch = retValue.substring(retValue.length-1, retValue.length);
    }
    while (retValue.indexOf("  ") != -1) { 
        // Note that there are two spaces in the string - 
        // look for multiple spaces within the string
        retValue = retValue.substring(0, retValue.indexOf("  ")) 
            + retValue.substring(retValue.indexOf("  ")+1, retValue.length); 
        // Again, there are two spaces in each of the strings
    }
    return retValue; 
    // Return the trimmed string back to the user
} // Ends the "trim" function

function validateEmail(emailStr) {
    var checkTLD=1;
    var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
    var emailPat=/^(.+)@(.+)$/;
    var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]";
    var validChars="\[^\\s" + specialChars + "\]";
    var quotedUser="(\"[^\"]*\")";
    var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
    var atom=validChars + '+';
    var word="(" + atom + "|" + quotedUser + ")";
    var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
    var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
    var matchArray=emailStr.match(emailPat);

    if (matchArray==null) {
    	alert("Incorrect email address (check @ and .'s)");
        return false;
    }
    var user=matchArray[1];
    var domain=matchArray[2];
    for (i=0; i<user.length; i++) {
        if (user.charCodeAt(i)>127) {
            alert("Ths email address contains invalid characters.");
            return false;
		}
    }
    for (i=0; i<domain.length; i++) {
		if (domain.charCodeAt(i)>127) {
			alert("Ths email address contains invalid characters.");
			return false;
		}
    }

    if (user.match(userPat)==null) {
		alert("Incorrect email address.");
		return false;
    }

    var IPArray=domain.match(ipDomainPat);
    if (IPArray!=null) {
		for (var i=1;i<=4;i++) {
			if (IPArray[i]>255) {
				alert("Invalid Email Address!");
				return false;
			}
		}
        return true;
    }
    var atomPat=new RegExp("^" + atom + "$");
    var domArr=domain.split(".");
    var len=domArr.length;
    for (i=0;i<len;i++) {
		if (domArr[i].search(atomPat)==-1) {
			alert("Invalid Email Address!");
            return false;
		}
    }
    if (checkTLD && domArr[domArr.length-1].length!=2 && domArr[domArr.length-1].search(knownDomsPat)==-1) {
        alert("Invalid Email Address");
        return false;
    }
    if (len<2) {
		alert("Invalid Email Address!");
		return false;
    }
    return true;
}

function validateNumber(numStr) {
    var valid = "0123456789";
    var ok = true;
    numStr = trim(numStr);
    for (var i=0; i < numStr.length; i++) {
        if (valid.indexOf(numStr.charAt(i)) < 0) {
            ok = false;
        }
    }
    if (!ok) {
        return false;
    } else {
        return true;
    }
}

function validateDate(obj){
	var date = trim(obj.value);
	if(date != ""){
		var formatteddate = formatDate(new Date(date), "MM/dd/yyyy");
		if (formatteddate == ""){
			obj.value = "";
			return false;
		} else {
			obj.value = formatteddate;
		}
	}
	return true;
}

function validateAmount(obj) {
    var temp = trim(obj.value);
    if (temp == "") {
    	return true;
    }
    var arr = temp.split(".");
    if (arr.length == 1) {
    	if (validateNumber(temp)) {
			return true;    	
    	} else {
    		obj.value = "";
	        return false;
		}
    } else if (arr.length == 2) {
        if (!validateNumber(arr[0])) {
        	obj.value = "";
            return false;
        }
        if (!validateNumber(arr[1])) {
        	obj.value = "";
            return false;
        }
    } else {
    	obj.value = "";
        return false;
    }
    return true;
}

function compareAmounts(a1, a2) {
	var amt1 = parseFloat(a1);
	var amt2 = parseFloat(a2);
	
	if (amt1 > amt2) {
		return 1;
	} else if (amt2 > amt1) {
		return 2;
	} else if (amt2 == amt1) {
		return 0;
	} else {
		return -1;
	}
	
}

function validatePassword(str) {
    var num = "0123456789";
    var chars = "abcdefghijklmnopqrstuvwxyz0123456789";
    var numok = false;
    var ok = true;
    str = trim(str.toLowerCase());
    if (str.length < 8) {
    	alert("Password should be atleast 8 characters in length.");
    	return false;
    }
    for (var i=0; i < str.length; i++) {
        if (num.indexOf(str.charAt(i)) > -1) {
            numok = true;
        }
    }
    if (numok == false) {
      	alert("Password should contain atleast one number.");
      	return false;
    }
    for (var i=0; i < str.length; i++) {
        if (chars.indexOf(str.charAt(i)) < 0) {
        	ok = false;
        }
    }
    if (ok == false) {
      	alert("Password should contain only alpha-numeric characters.");
      	return false;
    }
    
	return true;
}

function validateString(str) {
    var chars = "abcdefghijklmnopqrstuvwxyz0123456789-.,'/";

    str = trim(str.toLowerCase());

    for (var i=0; i < str.length; i++) {
    	if (str.charAt(i) != ' ') {
	        if (chars.indexOf(str.charAt(i)) < 0) {
				return false;
        	}
        }
    }
    
	return true;
}

function secureSite() {
	window.location.href = "https://www.idarmor.com/SubscriberController";
}

function checkSecure() {
	var loc = window.location.href;
	if (loc.indexOf("https:") < 0) {
		secureSite();
	}
}