// JavaScript Document
//make_me_slide

var getTargetElement = function(e){
		if(!e){ var e=window.event; }
		if (e.target){ var targ = e.target;}
		else if (e.srcElement){ targ = e.srcElement; }
		if (targ.nodeType == 3) // defeat Safari bug
			targ = targ.parentNode;
		return targ;
};
//alias for document.getElementById with multiple selection option
function $() {
  var elements = new Array();

  for (var i = 0; i < arguments.length; i++) {
    var element = arguments[i];
    if(typeof(element) == 'string'){
      element = document.getElementById(element);
	}
    if(arguments.length == 1){
      return element;
	}
    elements.push(element);
  }

  return elements;
};
//show a hidden element
function showElement(el){
	if(typeof(el)=="string"){
		el = $(el);	
	}
	el.style.display='block';
};
//hide an element
function hideElement(el){
	if(typeof(el)=="string"){
		el = $(el);	
	}
	el.style.display='none';
};
//toggle betwean show and hide
function toggle(pic,id){
	var preImg=new Image();
	preImg.src='img/minus.gif';
	var el=$(id);
	if(el.style.display=='' || el.style.display=='none'){
			showElement(el);
			$(pic).src='img/minus.gif';
	}else{
		hideElement(el); 
		$(pic).src='img/plus.gif';
	}	
};
function toggle2(id){
	var el= (typeof(id)=='string') ? $(id) : id;		
	if(el.style.display=='' || el.style.display=='none'){
		showElement(el);
	}else{
		hideElement(el); 
	}
	return false;
}


function check(el,parent_id){
	if($(el).checked==true){
		$(el).checked=false;
	}else{
		$(el).checked=true;
	}
	$(parent_id).checked=true;
};

function clearField(e){
	var srcTarget = getTargetElement(e);
	if(srcTarget.value == 'username' || srcTarget.value=='password'){
		srcTarget.value='';	
	}
	return false;
};
function addEvent(el,evt,func){
	if(typeof(el)=='string'){
		el = $(el);	
	}
	if(el.addEventListener){
		el.addEventListener(evt,func,false);	
	}else if(el.attachEvent){
		el.attachEvent('on'+evt,func);	
	}else{
		el['on'+evt] = func;	
	}
	return true;
};

function cancelEvent(e){
	if(e.preventDefault){
		e.stopPropagation();	
		e.preventDefault();
	}else{
		e.returnValue = false;
		e.cancelBubble = true;
	}
	return false;
}
function clearAct(e){
    $('act').value='';
	$('skip_action').value='1';
	$('form').submit();
	cancelEvent(e);
};

function getElementsByClass(searchClass,node,tag) {
	var classElements = new Array();
	if ( node == null )
		node = document;
	if ( tag == null )
		tag = '*';
	var els = node.getElementsByTagName(tag);
	var elsLen = els.length;
	var pattern = new RegExp("(^|\\s)"+searchClass+"(\\s|$)");
	for (i = 0, j = 0; i < elsLen; i++) {
		if ( pattern.test(els[i].className) ) {
			classElements[j] = els[i];
			j++;
		}
	}
	return classElements;
};

// Pop Up //
 function PopupPic(sPicURL) {
	window.open( "popup.htm?"+sPicURL, "",  
     "resizable=1,HEIGHT=200,WIDTH=200");
   } 

function addLoadEvent(func){
	if(window.addEventListener){
		window.addEventListener('load',func,false);	
	}else if(window.attachEvent){
		window.attachEvent('onload',func);	
	}else{
		window['onload'] = func;	
	}
	return true;

}


//function used to determin current date on host pc
function get_date(){
	var output='';
	var d = new Date();
	year = d.getFullYear();
	month = d.getMonth();
	day = d.getDay();
	hour = d.getHours();
	month = d.getMonth();
	var DaysOfWeek = ["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"];
	var MonthsOfYear =["January","February","March","April","May","June","July","August","September","October","November","December"];
	var output=DaysOfWeek[day]+" "+MonthsOfYear[month]+" "+d.getDate()+" "+year;
	return output;
}

//Menu Swap Functions 

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

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_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

/**
 * Convert a single file-input element into a 'multiple' input list
 *
 * Usage:
 *
 *   1. Create a file input element (no name)
 *      eg. <input type="file" id="first_file_element">
 *
 *   2. Create a DIV for the output to be written to
 *      eg. <div id="files_list"></div>
 *
 *   3. Instantiate a MultiSelector object, passing in the DIV and an (optional) maximum number of files
 *      eg. var multi_selector = new MultiSelector( document.getElementById( 'files_list' ), 3 );
 *
 *   4. Add the first element
 *      eg. multi_selector.addElement( document.getElementById( 'first_file_element' ) );
 *
 *   5. That's it.
 *
 *   You might (will) want to play around with the addListRow() method to make the output prettier.
 *
 *   You might also want to change the line 
 *       element.name = 'file_' + this.count;
 *   ...to a naming convention that makes more sense to you.
 * 
 * Licence:
 *   Use this however/wherever you like, just don't blame me if it breaks anything.
 *
 * Credit:
 *   If you're nice, you'll leave this bit:
 *  
 *   Class by Stickman -- http://www.the-stickman.com
 *      with thanks to:
 *      [for Safari fixes]
 *         Luis Torrefranca -- http://www.law.pitt.edu
 *         and
 *         Shawn Parker & John Pennypacker -- http://www.fuzzycoconut.com
 *      [for duplicate name bug]
 *         'neal'
 */
function MultiSelector( list_target, max ){

	// Where to write the list
	this.list_target = list_target;
	// How many elements?
	this.count = 0;
	// How many elements?
	this.id = 0;
	// Is there a maximum?
	if( max ){
		this.max = max;
	} else {
		this.max = -1;
	};
	
	/**
	 * Add a new file input element
	 */
	this.addElement = function( element ){

		// Make sure it's a file input element
		if( element.tagName == 'INPUT' && element.type == 'file' ){

			// Element name -- what number am I?
			element.name = 'file_' + this.id++;

			// Add reference to this object
			element.multi_selector = this;

			// What to do when a file is selected
			element.onchange = function(){

				// New file input
				var new_element = document.createElement( 'input' );
				new_element.type = 'file';

				// Add new element
				this.parentNode.insertBefore( new_element, this );

				// Apply 'update' to element
				this.multi_selector.addElement( new_element );

				// Update list
				this.multi_selector.addListRow( this );

				// Hide this: we can't use display:none because Safari doesn't like it
				this.style.position = 'absolute';
				this.style.left = '-1000px';

			};
			// If we've reached maximum number, disable input element
			if( this.max != -1 && this.count >= this.max ){
				element.disabled = true;
			};

			// File element counter
			this.count++;
			// Most recent element
			this.current_element = element;
			
		} else {
			// This can only be applied to file input elements!
			alert( 'Error: not a file input element' );
		};

	};

	/**
	 * Add a new row to the list of files
	 */
	this.addListRow = function( element ){

		// Row div
		var new_row = document.createElement( 'div' );


		// Delete button
		var new_row_button = document.createElement( 'input' );
		new_row_button.type = 'button';
		new_row_button.value = 'Delete';

		// References
		new_row.element = element;

		// Delete function
		new_row_button.onclick= function(){

			// Remove element from form
			this.parentNode.element.parentNode.removeChild( this.parentNode.element );

			// Remove this row from the list
			this.parentNode.parentNode.removeChild( this.parentNode );

			// Decrement counter
			this.parentNode.element.multi_selector.count--;

			// Re-enable input element (if it's disabled)
			this.parentNode.element.multi_selector.current_element.disabled = false;

			// Appease Safari
			//    without it Safari wants to reload the browser window
			//    which nixes your already queued uploads
			return false;
		};

		// Set row value
		new_row.innerHTML = '<a href="file:///' + element.value +'" target="_blank">' + element.value + "</a>";
	
		// Add button
		new_row.appendChild( new_row_button );

		// Add it to the list
		this.list_target.appendChild( new_row );
		
	};

};