/* Simple AJAX Code-Kit (SACK) v1.6.1 */
/* ©2005 Gregory Wild-Smith */
/* www.twilightuniverse.com */
/* Software licenced under a modified X11 licence,
   see documentation or authors website for more details */

function sack(file) {
	this.xmlhttp = null;

	this.resetData = function() {
		this.method = "POST";
  		this.queryStringSeparator = "?";
		this.argumentSeparator = "&";
		this.URLString = "";
		this.encodeURIString = true;
  		this.execute = false;
  		this.element = null;
		this.elementObj = null;
		this.requestFile = file;
		this.vars = new Object();
		this.responseStatus = new Array(2);
  	};

	this.resetFunctions = function() {
  		this.onLoading = function() { };
  		this.onLoaded = function() { };
  		this.onInteractive = function() { };
  		this.onCompletion = function() { };
  		this.onError = function() { };
		this.onFail = function() { };
	};

	this.reset = function() {
		this.resetFunctions();
		this.resetData();
	};

	this.createAJAX = function() {
		try {
			this.xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e1) {
			try {
				this.xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e2) {
				this.xmlhttp = null;
			}
		}

		if (! this.xmlhttp) {
			if (typeof XMLHttpRequest != "undefined") {
				this.xmlhttp = new XMLHttpRequest();
			} else {
				this.failed = true;
			}
		}
	};

	this.setVar = function(name, value){
		this.vars[name] = Array(value, false);
	};

	this.encVar = function(name, value, returnvars) {
		if (true == returnvars) {
			return Array(encodeURIComponent(name), encodeURIComponent(value));
		} else {
			this.vars[encodeURIComponent(name)] = Array(encodeURIComponent(value), true);
		}
	}

	this.processURLString = function(string, encode) {
		encoded = encodeURIComponent(this.argumentSeparator);
		regexp = new RegExp(this.argumentSeparator + "|" + encoded);
		varArray = string.split(regexp);
		for (i = 0; i < varArray.length; i++){
			urlVars = varArray[i].split("=");
			if (true == encode){
				this.encVar(urlVars[0], urlVars[1]);
			} else {
				this.setVar(urlVars[0], urlVars[1]);
			}
		}
	}

	this.createURLString = function(urlstring) {
		if (this.encodeURIString && this.URLString.length) {
			this.processURLString(this.URLString, true);
		}

		if (urlstring) {
			if (this.URLString.length) {
				this.URLString += this.argumentSeparator + urlstring;
			} else {
				this.URLString = urlstring;
			}
		}

		// prevents caching of URLString
		this.setVar("rndval", new Date().getTime());

		urlstringtemp = new Array();
		for (key in this.vars) {
			if (false == this.vars[key][1] && true == this.encodeURIString) {
				encoded = this.encVar(key, this.vars[key][0], true);
				delete this.vars[key];
				this.vars[encoded[0]] = Array(encoded[1], true);
				key = encoded[0];
			}

			urlstringtemp[urlstringtemp.length] = key + "=" + this.vars[key][0];
		}
		if (urlstring){
			this.URLString += this.argumentSeparator + urlstringtemp.join(this.argumentSeparator);
		} else {
			this.URLString += urlstringtemp.join(this.argumentSeparator);
		}
	}

	this.runResponse = function() {
		eval(this.response);
	}

	this.runAJAX = function(urlstring) {
		if (this.failed) {
			this.onFail();
		} else {
			this.createURLString(urlstring);
			if (this.element) {
				this.elementObj = document.getElementById(this.element);
			}
			if (this.xmlhttp) {
				var self = this;
				if (this.method == "GET") {
					totalurlstring = this.requestFile + this.queryStringSeparator + this.URLString;
					this.xmlhttp.open(this.method, totalurlstring, true);
				} else {
					this.xmlhttp.open(this.method, this.requestFile, true);
					try {
						this.xmlhttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded")
					} catch (e) { }
				}

				this.xmlhttp.onreadystatechange = function() {
					switch (self.xmlhttp.readyState) {
						case 1:
							self.onLoading();
							break;
						case 2:
							self.onLoaded();
							break;
						case 3:
							self.onInteractive();
							break;
						case 4:
							self.response = self.xmlhttp.responseText;
							self.responseXML = self.xmlhttp.responseXML;
							self.responseStatus[0] = self.xmlhttp.status;
							self.responseStatus[1] = self.xmlhttp.statusText;

							if (self.execute) {
								self.runResponse();
							}

							if (self.elementObj) {
								elemNodeName = self.elementObj.nodeName;
								elemNodeName.toLowerCase();
								if (elemNodeName == "input"
								|| elemNodeName == "select"
								|| elemNodeName == "option"
								|| elemNodeName == "textarea") {
									self.elementObj.value = self.response;
								} else {
									self.elementObj.innerHTML = self.response;
								}
							}
							if (self.responseStatus[0] == "200") {
								self.onCompletion();
							} else {
								self.onError();
							}

							self.URLString = "";
							break;
					}
				};

				this.xmlhttp.send(this.URLString);
			}
		}
	};

	this.reset();
	this.createAJAX();
}


function addNewStudent() {
	var str="";
	var id = document.getElementById("id").value;
	id++;
	//alert(id);
	document.getElementById("id").value=id;
	$("#student_wrapper").append(        
		"<div id='row"+ id +"' class='box' style=''>" +
        	//"<input type='hidden' id='id' value='"+id+"'>" +
            "<h2><a href='#' onClick='removeFormField(" + id + "); return false;' style='float:right; margin-right:.5em;'><img src='http://info.vvsd.org/icons/delete.png' alt='Delete Icon' class='icon' style='position:relative;' /><span class='text-red' >remove</span></a> Student's Information</h2>" +
            "<p><label style='width:15em;'>Student ID#:</label><input name='student_id[]' id='student_id_"+id+"' type='text' value='' maxlength='6'  style='width:17em;' ><span class='required'></span></p>" +
            "<p><label style='width:15em;'>Name of Student :<br /><span style='font-weight:normal; color:#999999;'>First Last</span></label><input name='student_fname[]' id='student_fname_"+id+"' type='text' value=''  style='width:6em;' ><input name='student_lname[]' id='student_lname_"+id+"' type='text' value=''  style='width:9em; margin-left:1em;' ><span class='required'></span></p>" +
            "<p><label style='width:15em;'>Relationship to Student:</label><input name='student_rel[]' id='student_rel_"+id+"' type='text' value=''  style='width:17em;' ><span class='required'></span></p>" +
            "<p style='border-bottom:none; margin-bottom:0em; padding-bottom:0em;'>" +
                "<label style='width:15em;'>Student's School:</label>" +
                "<select name='student_school[]' id='student_school_"+id+"'>" +
                    "<option value='' selected='selected' >- school -</option>" +
                    "<option value='Ad. Center' >Administration Center</option>" +
                    "<option value='BHS' >Bolingbrook High School</option>" +
                    "<option value='RHS' >Romeoville High School</option>" +
                    "<option value='AVM' >A. Vito Martinez Middle School</option>" +
                    "<option value='BMS' >Brooks Middle School</option>" +
                    "<option value='JA' >Jane Addams School</option>" +
                    "<option value='JJL' >John J. Lukancic Middle School</option>" +
                    "<option value='BJW' >Bernard J. Ward Elementary School</option>" +
                    "<option value='BSE' >Beverly Skoff Elementary School</option>" +
                    "<option value='IND' >Independence Elementary School</option>" +
                    "<option value='IHK' >Irene King Elementary School</option>" +
                    "<option value='JLM' >Jamie McGee Elementary School</option>" +
                    "<option value='JRT' >John R. Tibbott Elementary School</option>" +
                    "<option value='JES' >Jonas E. Salk Elementary School</option>" +
                    "<option value='KLH' >Hermansen Elementary School</option>" +
                    "<option value='OV' >Oak View Elementary School</option>" +
                    "<option value='PNR' >Pioneer Elementary School</option>" +
                    "<option value='RCH' >Robert C. Hill Elementary School</option>" +
                    "<option value='VVEC' >Early Childhood School</option>" +
                    "<option value='WV' >Wood View Elementary School</option>" +
                    "<option value='PHX' >Phoenix Alternative School</option>" +
                "</select>" +
            "<span class='required'></span></p>" +
        "</div>"
	);


	//id = (id - 1) + 2;
	//document.getElementById("id").value = id;
}

function removeFormField(id) {
	//document.getElementById("id").value=(id-1);
	//alert(id);
	$("#row"+id).remove();
	//alert(document.getElementById("id").value);
}
