Javascript utility funcs

Javascript utility funcs

/* Javascript utility funcs */


function valueInArray (val,arr) {
	for (var i = 0; i < arr.length; i++) {
		if (val==arr[i]) {
			return true;
		}
	}
	return false;
}

function strip (mainStr, stripStartChar){
	foundOffset = mainStr.indexOf(stripStartChar);
	if (foundOffset == -1) {
		return mainStr;
	}
	return mainStr.substring(0,foundOffset);
}

function radio_value(elem) {
	for (var i=0; i < elem.length; i++) {
		if (elem[i].checked) {
			return elem[i].value;
		}
	}
	return "";
}

// takes elem and value to make "checked", returns true/false
function radio_check(elem,val) {
	if (!elem) {
		return false;
	}
	if (!val) {
		return false;
	}
	for (var i = 0; i < elem.length; i++) {
		if (strip_jeff(elem[i].value)==val) {
			elem[i].checked = true;
			return true;
		}
	}
	return false;
}

function parse_searchstr(str) {
	str = str ? str : location.search;
	var query = str.charAt(0) == '?' ? str.substring(1) : str;
	var args = new Object();
	if (query) {
		var fields = query.split('&');
		for (var f = 0; f < fields.length; f++) {
			var field = fields[f].split('=');
			args[unescape(field[0].replace(/\+/g, ' '))] = unescape(field[1].replace(/\+/g, ' '));
		}
	}
	return args;
}

function clearWhitespace(str) {
	return (str.replace(/^\s+/,'')).replace(/\s+$/,'');
}

// same as clearWhitespace() except it takes a form elem and assign the new val to elem and returns val
function clearWhitespaceElem(elem) {
	var str = elem.value;
	str = (str.replace(/^\s+/,'')).replace(/\s+$/,'');
	elem.value = str;
	return str;
}

// strip white space and beginned and end of string
function trim_string(InString)
{
      var ichar, icount;
      var strValue = InString;
      ichar = strValue.length - 1;
      icount = -1;
      while (ichar > icount && strValue.charAt(ichar)==' ')
          --ichar;
      if (ichar!=(strValue.length-1))
          strValue = strValue.slice(0,ichar+1);
      ichar = 0;
      icount = strValue.length - 1;
      while (ichar < icount && strValue.charAt(ichar)==' ')
          ++ichar;
      if (ichar!=0)
          strValue = strValue.slice(ichar,strValue.length);
      return strValue;
}

function getWordArray (str) {

	var st = -1; // word start
	var thisword = "";
	
	var words_to_check = new Array();
	
	for (var i = 0; i < str.length; i++) { // through each char
		
		// find a word
		var charcode = str.toLowerCase().charCodeAt(i);
		
		// if word exists from last round, wipe it
		if (thisword != "") {
			thisword = "";
		}
		
		if (charcode >= 97 && charcode <= 122) { // if char
			if (thisword == "" && st == -1) { // still look for word start (and no start found before now)
				st = i; // save this pos as start
			} // else I have a word so ignore char
		} else { // not a char; define word if haven't already
			if (thisword == "" && st != -1) { // need to define/end a word (and start found)
				thisword = str.substring(st,i);
				st = -1; // reset start
			}
		}
		
		if (thisword != "") { // if have word, check spelling 
			words_to_check[words_to_check.length] = thisword;
		}
		
	}
	return words_to_check;
}

function bubbleSort(inputArray) {
	var start = 0;
	var rest = inputArray.length-1;
	for (var i = rest - 1; i >= start;  i--) {
		for (var j = start; j <= i; j++) {
			if (inputArray[j+1] < inputArray[j]) {
				var tempValue = inputArray[j];
				inputArray[j] = inputArray[j+1];
				inputArray[j+1] = tempValue;
			}
		}
	}
	return inputArray;
}

function bubbleSortUnique(inputArray) { // bubble sort and make unique
	var start = 0;
	var rest = inputArray.length-1;
	for (var i = rest - 1; i >= start;  i--) {
		for (var j = start; j <= i; j++) {
			if (inputArray[j+1] < inputArray[j]) {
				var tempValue = inputArray[j];
				inputArray[j] = inputArray[j+1];
				inputArray[j+1] = tempValue;
			}
		}
	}
	var arr_unique = new Array();
	var curr_word = "";
	for (var i = 0; i < inputArray.length; i++) {
		if (inputArray[i] != curr_word) {
			arr_unique[arr_unique.length] = inputArray[i];
			curr_word = inputArray[i];
		}
	}
	//return inputArray;
	return arr_unique;
}

function bubbleSortN(inputArray) { // bubblesort that uses parseint to sort
	var start = 0;
	var rest = inputArray.length-1;
	for (var i = rest - 1; i >= start;  i--) {
		for (var j = start; j <= i; j++) {
			if (parseInt(inputArray[j+1],10) < parseInt(inputArray[j],10)) {
				var tempValue = inputArray[j];
				inputArray[j] = inputArray[j+1];
				inputArray[j+1] = tempValue;
			}
		}
	}
	return inputArray;
}

function removeIndex (arr,i) {
	var tarr = new Array();
	for (var j  =0; j < arr.length; j++) {
		if (j != i) {
			tarr[tarr.length] = arr[j];
		}
	}
	arr = tarr;
	return arr;
}




function replaceAll (str, token, repstr) {
	var newstr = "", ts;
	if (str.indexOf(token) == -1) { return str; }
	ts = str.split(token);
	for (var i = 0; i < ts.length; i++) {
		if (i != (ts.length - 1)) {
			newstr += ts[i] + repstr;
		} else {
			newstr += ts[i];
		}
	}
	return newstr;
}


// preload_imgs( '01.gif', '02.gif' ); 
function preload_imgs()
{ 
  var args = preload_imgs.arguments;
  document.imageArray = new Array(args.length);
  for(var i=0; i<args.length; i++)
  {
    document.imageArray[i] = new Image;
    document.imageArray[i].src = args[i];
  }
}

function round_money (float_amt) {
	float_amt *= 100;
	float_amt = Math.round(float_amt);
	float_amt /= 100;
	return float_amt;
}


function valid_phone(phone) {
	
	var phone_re = /^((\((\d{3})\)|(\d{3}))[- .]?)?(\d{3})[- .]?(\d{4})$/;
	return phone_re.test(phone);
}

function valid_creditcard1(cc_number) {
	
	var cc_re = /^\d{4}[- .]?\d{4}[- .]?\d{4}[- .]?\d{4}[- .]?$/;
	return cc_re.test(cc_number);
	
}

function valid_creditcard(cc_number) {
	
	var cc_re = /^\d{3,4}[- .]?\d{3,4}[- .]?\d{3,4}[- .]?\d{3,4}$/;
	return cc_re.test(cc_number);
	
}

function valid_email(email) {

	var email_re = /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/;
	return email_re.test(email);
}

function valid_website(website) {

	var website_re = /^(http:\/\/|https:\/\/)?\w*[.]?\w+[.]\w+$/;
	return website_re.test(website);
}

function valid_date (Y, M, D, checkForSatSun) {

	/*
		RANGES:
		Y = 2003, 2004
		M = 0-11
		D = 1-31
		checkForSatSun = true, false;
	*/

	var leap = 0;
	var err = 0;		
	var today = new Date();
	var openhouse = new Date(Y, M, D);
	var D_ofweek = openhouse.getDay(); // day number 0-6 (0=sunday)
	var checkWeekend = checkForSatSun ? true : false;

	// is date_input before now?
	if (openhouse.getTime() < today.getTime()) {
		alert("Please select a future date.");
		return false;
	}
	// validate leap-year, february, day
	if ((Y % 4 == 0) || (Y % 100 == 0) || (Y % 400 == 0)) {
		leap = 1;
	}
	if ((M == 1) && (leap == 1) && (D > 29)) {
		err = 10;
	}
	if ((M == 1) && (leap != 1) && (D > 28)) {
		err = 20;
	}
	// 30 days has sep (8), apr (3), june (5), nov (10)  
	if ((D > 30) && ((M == "3") || (M == "5") || (M == "8") || (M == "10"))) {
		err = 30;
	}
	if (err != 0) {
		alert("Date does not exist. ("+err+")");
		return false;
	}
	if (checkWeekend && D_ofweek != 0 && D_ofweek != 6) {
		if (!confirm("You did not choose a Saturday or a Sunday.")) { return false; }
	}
	return true;
}

function date_makeDayNum (Y,M,D) {
	var d;
	if (arguments.length != 3) {
		d = new Date();
	} else {
		d = new Date(Y,M,D);
	}
	return Math.ceil(((((d.getTime())/1000)/60)/60)/24);
}

function date_daysFromToday (Y,M,D) {
	return (date_makeDayNum(Y,(M-1),D) - date_makeDayNum());
}


function isNumberFloat(inputString)
{
  return (!isNaN(parseFloat(inputString))) ? true : false;
}

function isNumberFloat(inputString)
{
  return (!isNaN(parseInt(inputString))) ? true : false;
}


function onlyNumbers(inputString)
{
  var searchForNumbers = /\D+\_+\W+\s+\S+/
  (searchForNumbers.test(inputString)) ? return false : return true;
} 

function isVowel(c) {
	c = c.toUpperCase();
	var vowels = new Array("A","E","I","O","U");
	for (var i = 0; i < vowels.length; i++) {
		if (vowels[i]==c) {
			return true;
		}
	}
	return false;
}

function popup_window(html_file, w, h)
{
  var width=w, height=h;
  var left = (screen.width/2) - width/2;
  var top = (screen.height/2) - height/2;
  var styleStr = 'toolbar=no,location=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width='+width+',height='+height+',left='+left+',top='+top+',screenX='+left+',screenY='+top;
  var msgWindow = window.open(html_file,"popwin", styleStr);
}