function ResolveUrl(url) {
    if (url.indexOf("~/") == 0) {
        url = "/" + url.substring(2);
    }
    return url;
}

function FormatAmount(obj) {
    var _fmtedAmt = CurrencyFormatted($(obj).val());
    $(obj).val(_fmtedAmt);
}

function CurrencyFormatted(amount) {
    var i = parseFloat(amount);
    if (isNaN(i)) { i = 0.00; }
    var minus = '';
    if (i < 0) { minus = '-'; }
    i = Math.abs(i);
    i = parseInt((i + .005) * 100);
    i = i / 100;
    s = new String(i);
    if (s.indexOf('.') < 0) { s += '.00'; }
    if (s.indexOf('.') == (s.length - 2)) { s += '0'; }
    s = minus + s;
    return s;
}

function calculate_time_zone() {
    var rightNow = new Date();
    var jan1 = new Date(rightNow.getFullYear(), 0, 1, 0, 0, 0, 0);  // jan 1st
    var june1 = new Date(rightNow.getFullYear(), 6, 1, 0, 0, 0, 0); // june 1st
    var temp = jan1.toGMTString();
    var jan2 = new Date(temp.substring(0, temp.lastIndexOf(" ") - 1));
    temp = june1.toGMTString();
    var june2 = new Date(temp.substring(0, temp.lastIndexOf(" ") - 1));
    var std_time_offset = (jan1 - jan2) / (1000 * 60 * 60);
    var daylight_time_offset = (june1 - june2) / (1000 * 60 * 60);
    var dst;
    if (std_time_offset == daylight_time_offset) {
        dst = "0"; // daylight savings time is NOT observed
    } else {
        // positive is southern, negative is northern hemisphere
        var hemisphere = std_time_offset - daylight_time_offset;
        if (hemisphere >= 0)
            std_time_offset = daylight_time_offset;
        dst = "1"; // daylight savings time is observed
    }

    return convert(std_time_offset) + "," + dst;
}

function convert(value) {
    var hours = parseInt(value);
    value -= parseInt(value);
    value *= 60;
    var mins = parseInt(value);
    value -= parseInt(value);
    value *= 60;
    var secs = parseInt(value);
    var display_hours = hours;
    // handle GMT case (00:00)
    if (hours == 0) {
        display_hours = "00";
    } else if (hours > 0) {
        // add a plus sign and perhaps an extra 0
        display_hours = (hours < 10) ? "+0" + hours : "+" + hours;
    } else {
        // add an extra 0 if needed 
        display_hours = (hours > -10) ? "-0" + Math.abs(hours) : hours;
    }

    mins = (mins < 10) ? "0" + mins : mins;
    return display_hours + ":" + mins;
}


(function ($) {

    $.fn.alphanumeric = function (p) {

        p = $.extend({
            ichars: "!@#$%^&*()+=[]\\\';,/{}|\":<>?~`.- ",
            nchars: "",
            allow: ""
        }, p);

        return this.each
			(
				function () {

				    if (p.nocaps) p.nchars += "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
				    if (p.allcaps) p.nchars += "abcdefghijklmnopqrstuvwxyz";

				    s = p.allow.split('');
				    for (i = 0; i < s.length; i++) if (p.ichars.indexOf(s[i]) != -1) s[i] = "\\" + s[i];
				    p.allow = s.join('|');

				    var reg = new RegExp(p.allow, 'gi');
				    var ch = p.ichars + p.nchars;
				    ch = ch.replace(reg, '');

				    $(this).keypress
						(
							function (e) {
							    if (!e.charCode) {
							        if (e.which == 46) {
							            if (e.srcElement.value.indexOf(".") < 0) {
							                if (e.srcElement.value.length == 0)
							                    e.srcElement.value = "0";
							            }
							            else {
							                e.preventDefault();
							            }
							        }
							        k = String.fromCharCode(e.which);
							    }
							    else {
							        if (e.charCode == 46) {
							            if (e.currentTarget.value.indexOf(".") < 0) {
							                if (e.currentTarget.value.length == 0)
							                    e.currentTarget.value = "0";
							            }
							            else {
							                e.preventDefault();
							            }
							        }
							        k = String.fromCharCode(e.charCode);
							    }

							    if (ch.indexOf(k) != -1) e.preventDefault();
							    if (e.ctrlKey && k == 'v') e.preventDefault();

							}

						);

				    $(this).bind('contextmenu', function () { return false });

				}
			);
    };

    $.fn.numeric = function (p) {

        var az = "abcdefghijklmnopqrstuvwxyz";
        az += az.toUpperCase();

        p = $.extend({
            nchars: az
        }, p);

        return this.each(function () {
            $(this).alphanumeric(p);
        }
		);

    };

    $.fn.alpha = function (p) {

        var nm = "1234567890";

        p = $.extend({
            nchars: nm
        }, p);

        return this.each(function () {
            $(this).alphanumeric(p);
        }
		);

    };

})(jQuery);