// JScript File

function calPop(e)
{
    var cal2 = new CalendarPopup('nn2');
    cal2.select(e,e.id,'MM/dd/yyyy');
}


function SNFormUtils()
{
    var me = this;
    var holder = new Object();
    var lastDateField;
    
    init();
    
    
    function init()
    {
        holder.inputs = document.getElementsByTagName("input");
        holder.selects = document.getElementsByTagName("select");
        holder.images = document.getElementsByTagName("img");
    }
    
    
    
    
    
    /**
    * Gets an array of all <input .. /> elements on page */
    this.documentInputs = function()
    {
        return holder.inputs;
    }
    
    
    
    
    /**
    * Gets an array of all <select .. /> elements on page */
    this.documentSelects = function()
    {
        return holder.selects;
    }
    
    
    
    
    
    
    
    /***
    * if you have 3 radio/checkbox for a given value
    * and you want to make sure that you can't 
    * choose 3 of the same value, use this with {s}
    * being the radio/checkbox that was clicked.
    *
    *       [ ][x][ ]       [x][x][ ]
    *       [x][ ][ ]       [ ][ ][x]    
    *       [ ][ ][x]       [ ][ ][ ]
    *
    *           ok           not ok
    *
    * 
    * works for any grid of n x m where n,m 
    * are natural numbers; this method is 
    * bigO(n) where n is number of inputs on a page
    *
    * usage:
    *     <input type="radio" ... onclick="document.validator.tripleRadioCheck(this)" .. />
    */
    this.tripleRadioCheck = function(s)
    {
        var e = holder.inputs;
        if (!s.id) return;
        for (i = 0; i < e.length; i++)
        if (e[i].type)
        if ((e[i].type == "checkbox" || e[i].type == "radio") && e[i] != s)
        if (e[i].checked && e[i].value == s.value) e[i].checked = false;
    }
    
    
    
    
    
    
    
    
    
    
    
    
    /**
     * allows to make it so that when you click on an input field
     * it hides [emptyText] and lets you type.
     *
     * Example (square bracket depict an input field):
     *
     *    [ put your name here                  ]
     *
     *      > visitor clicks on field, then "put your name here" disappears
     *
     *    [ visitor's text                      ]
     *
     *      > visitor's mouse moves exits the field, their text stays in field
     *      if it's not equal to [emptyText] or if that field is not blank;
     *      look at the search page for example;
     *
     */
    this.hideableInputText = function(inputField, emptyText)
    {
        inputField.value = emptyText;
        if (inputField.className != "")
            inputField.className += " sn_fadedInputText";
        else
            inputField.className = "sn_fadedInputText";
        inputField.onfocus = function()
        {
            if (this.value == emptyText) this.value = "";
            this.className = this.className.replace(/sn_fadedInputText/ig,"");
        }
        inputField.onblur = function()
        {
            if (this.value == "")
            {
                this.value = emptyText;
                this.className += " sn_fadedInputText";
            }
        }
    }
    
    
    
    
    
    /**
     * Usage:
     *      [n]     string indicating the shared part of id's in all
     *              checkboxes (i.e substring)
     *      [b]     boolean saying should we check the box (b=true)
     *              or don't (b=false)
     */
    this.checkAllBoxes = function(n,b)
    {
        var values = new Array();
        for (i =0; i < holder.inputs.length; i++)
            if (holder.inputs[i].id)
                if(holder.inputs[i].id.indexOf(n)!=-1)
                {
                    holder.inputs[i].checked = b;
                    if (b) values.push(holder.inputs[i].value);
                }
        return values;
    }
    
    
    
    
    
    
    /**
     * {el1} and {el2} are both <select ..> drop down elements (not id's but
     * the actual DOM objects); this function keeps {el1}'s value always
     * smaller than {el2}'s value assuming they started like initially;
     * {comparator} is a function that returns 0 if their values
     * are equal, -1 if {el1}'s value is smaller than {el2}'s value
     * and 1 otherwise; See the search pages js for example of usage;
     * {comparator} is a reference to the function not the string
     * representation of the function; if you know C, then qsort() in
     * C uses the similar method signature so read its man page;
     */
    this.keepSelectsRelative = function(el1, el2, comparator)
    {
        if (el1.value == "" || el2.value == "") return;
        if (comparator(el1, el2)>0)
            while (comparator(el1, el2)>0 && el1.selectedIndex != 0)
                el1.selectedIndex--;
    }
    
    
    
    
    
    
    /**
     * Makes a data selection dropdown for all input fields of type text
     * with the word "date" as a substring of their name */
    this.initCalendar = function()
    {   
        var cal2 = new CalendarPopup("nn2");
        var lastDateField;
        
        for (qwe = 0; qwe < holder.inputs.length; qwe++)
            if (holder.inputs[qwe].type ==  "text")
                if (holder.inputs[qwe].id)
                    if (holder.inputs[qwe].id.match(/date/ig)!=null)
                    {
                        if(holder.inputs[qwe].value=="MM/dd/yyyy")holder.inputs[qwe].value = "mm/dd/yyyy";
                        holder.inputs[qwe].onclick = function()
                        { 
                            lastDateField = this;
                            //alert(this.id);
                            if (this.value == "") this.value = "mm/dd/yyyy";
                            cal2.select(this,this.id,'MM/dd/yyyy');
                        };
                    }
                    
     }
   
    
    
    
    
    /**
     *This function is called by the calendar's plugin.js file
     *so if you change it's name, make sure you know what you're doing*/
    this.checkDates = function()
    {
        if (lastDateField)
            if (lastDateField.value)
                if (lastDateField.value.match(/\d{2}\/\d{2}\/\d{4}/ig)==null)
                    lastDateField.value = "mm/dd/yyyy";
    }
    
    
    
    
    
    this.submit = function(e)
    {
        try
        {
            e.submit();
        }catch(err){}
    }
    

}

document.validator = new SNFormUtils();