/**
 * Common
 *
 * Code Generator : Maeng Joon-Young (http://www.maengis.com)
 */

var Common = {
	cursorPosTop : 0,
	cursorPosLeft : 0,

	cursorPos : function (layerID, topPos, leftPos, event) {
		// Cross Browser - Cursor Pointer
		if (event.pageX || event.pageY) {
			this.cursorPosLeft = event.pageX;
			this.cursorPosTop = event.pageY;
		} else {
			this.cursorPosLeft = event.clientX + (document.documentElement.scrollLeft || document.body.scrollLeft) - document.documentElement.clientLeft;
			this.cursorPosTop = event.clientY + (document.documentElement.scrollTop || document.body.scrollTop) - document.documentElement.clientTop;
		}

		var objLayer = $("#"+layerID);

		objLayer.css("display", "block");

		objLayer.css("top", (this.cursorPosTop - topPos) + "px");
		objLayer.css("left", (this.cursorPosLeft - leftPos) + "px");

		return;
	},

	getBrowser : function () {
		var name = navigator.appName, ver = navigator.appVersion,
		ver_int = parseInt(navigator.appVersion), ua = navigator.userAgent, infostr;

		if (name == "Microsoft Internet Explorer") {
			if (ver.indexOf("MSIE 3.0") != -1) {
				return "Internet Explorer 3.0x";
			}
			
			if (ver_int != 4) {
				return "Internet Explorer " + ver.substring(0, ver.indexOf(" "));
			}
			
			var real_ver = parseInt(ua.substring(ua.indexOf("MSIE ") + 5));
			
			if (real_ver >= 7) {
				infostr = "Windows Internet Explorer ";
			} else {
				infostr = "Microsoft Internet Explorer ";
			}

			if (ua.indexOf("MSIE 5.5") != -1) {
				return infostr + "5.5";
			} else {
				return infostr + real_ver + ".x";
			}

			return "Internet Explorer";
		} else if (name == "Netscape") {
			if (parseInt(ua.substring(8, 8)) <= 4) {
				return "Netscape " + ver.substring(0, ver.indexOf(" "));
			} else if (ua.lastIndexOf(" ") < ua.lastIndexOf("/")) {
				return ua.substring(ua.lastIndexOf(" "));
			} else {
				return "Netscape";
			}
		} else {
			return name;
		}
	},

	getIsIE : function () {
		result = (navigator.appName == "Microsoft Internet Explorer") ? true : false;

		return result;
	},

    getCurrentDate : function() {
		var time = new Date();
		var m = new String(time.getMonth() + 1);
		var d = new String(time.getDate());
		d = (d.length) == 1 ? 0 + d : d;
		m = (m.length) == 1 ? 0 + m : m;

		return time.getFullYear() + "-" + m + "-" + d;
    }
}

function setPng24(obj) {
	obj.width=obj.height=1;
	obj.className=obj.className.replace(/\bpng24\b/i,'');
	obj.style.filter =
	"progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+ obj.src +"',sizingMethod='image');"
	obj.src=''; 
	return '';
}

function nl2br (str, is_xhtml) {
	var breakTag = (is_xhtml || typeof is_xhtml === 'undefined') ? '<br />' : '<br>';
	return (str + '').replace(/([^>\r\n]?)(\r\n|\n\r|\r|\n)/g, '$1'+ breakTag +'$2');
}

function str_replace (search, replace, subject, count) {
    var i = 0, j = 0, temp = '', repl = '', sl = 0, fl = 0,
            f = [].concat(search),
            r = [].concat(replace),
            s = subject,
            ra = r instanceof Array, sa = s instanceof Array;
    s = [].concat(s);
    if (count) {
        this.window[count] = 0;
    }

    for (i=0, sl=s.length; i < sl; i++) {
        if (s[i] === '') {
            continue;
        }
        for (j=0, fl=f.length; j < fl; j++) {
            temp = s[i]+'';
            repl = ra ? (r[j] !== undefined ? r[j] : '') : r[0];
            s[i] = (temp).split(f[j]).join(repl);
            if (count && s[i] !== temp) {
                this.window[count] += (temp.length-s[i].length)/f[j].length;}
        }
    }
    return sa ? s : s[0];
}

function in_array (needle, haystack, argStrict) {
    // http://kevin.vanzonneveld.net
    // +   original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   improved by: vlado houba
    // +   input by: Billy
    // +   bugfixed by: Brett Zamir (http://brett-zamir.me)
    // *     example 1: in_array('van', ['Kevin', 'van', 'Zonneveld']);
    // *     returns 1: true
    // *     example 2: in_array('vlado', {0: 'Kevin', vlado: 'van', 1: 'Zonneveld'});
    // *     returns 2: false
    // *     example 3: in_array(1, ['1', '2', '3']);
    // *     returns 3: true
    // *     example 3: in_array(1, ['1', '2', '3'], false);
    // *     returns 3: true
    // *     example 4: in_array(1, ['1', '2', '3'], true);
    // *     returns 4: false

    var key = '', strict = !!argStrict;

    if (strict) {
        for (key in haystack) {
            if (haystack[key] === needle) {
                return true;
            }
        }
    } else {
        for (key in haystack) {
            if (haystack[key] == needle) {
                return true;
            }
        }
    }

    return false;
}

function mt_rand (min, max) {
    // http://kevin.vanzonneveld.net
    // +   original by: Onno Marsman
    // *     example 1: mt_rand(1, 1);
    // *     returns 1: 1
    var argc = arguments.length;
    if (argc === 0) {
        min = 0;
        max = 2147483647;
    } else if (argc === 1) {
        throw new Error('Warning: mt_rand() expects exactly 2 parameters, 1 given');
    }
    return Math.floor(Math.random() * (max - min + 1)) + min;
}

function strpos (haystack, needle, offset) {
    // http://kevin.vanzonneveld.net
    // +   original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   improved by: Onno Marsman    
    // +   bugfixed by: Daniel Esteban
    // +   improved by: Brett Zamir (http://brett-zamir.me)
    // *     example 1: strpos('Kevin van Zonneveld', 'e', 5);
    // *     returns 1: 14
    var i = (haystack + '').indexOf(needle, (offset || 0));
    return i === -1 ? false : i;
}

function strtotime (str, now) {
    // http://kevin.vanzonneveld.net
    // +   original by: Caio Ariede (http://caioariede.com)
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +      input by: David
    // +   improved by: Caio Ariede (http://caioariede.com)
    // +   improved by: Brett Zamir (http://brett-zamir.me)
    // +   bugfixed by: Wagner B. Soares
    // +   bugfixed by: Artur Tchernychev
    // %        note 1: Examples all have a fixed timestamp to prevent tests to fail because of variable time(zones)
    // *     example 1: strtotime('+1 day', 1129633200);
    // *     returns 1: 1129719600
    // *     example 2: strtotime('+1 week 2 days 4 hours 2 seconds', 1129633200);
    // *     returns 2: 1130425202
    // *     example 3: strtotime('last month', 1129633200);
    // *     returns 3: 1127041200
    // *     example 4: strtotime('2009-05-04 08:30:00');
    // *     returns 4: 1241418600
    var i, l, match, s, parse = '';

    str = str.replace(/\s{2,}|^\s|\s$/g, ' '); // unecessary spaces
    str = str.replace(/[\t\r\n]/g, ''); // unecessary chars
    if (str === 'now') {
        return now === null || isNaN(now) ? new Date().getTime() / 1000 | 0 : now | 0;
    } else if (!isNaN(parse = Date.parse(str))) {
        return parse / 1000 | 0;
    } else if (now) {
        now = new Date(now * 1000); // Accept PHP-style seconds
    } else {
        now = new Date();
    }

    str = str.toLowerCase();

    var __is = {
        day: {
            'sun': 0,
            'mon': 1,
            'tue': 2,
            'wed': 3,
            'thu': 4,
            'fri': 5,
            'sat': 6
        },
        mon: [
            'jan',
            'feb',
            'mar',
            'apr',
            'may',
            'jun',
            'jul',
            'aug',
            'sep',
            'oct',
            'nov',
            'dec'
        ]
    };

    var process = function (m) {
        var ago = (m[2] && m[2] === 'ago');
        var num = (num = m[0] === 'last' ? -1 : 1) * (ago ? -1 : 1);
        
        switch (m[0]) {
        case 'last':
        case 'next':
            switch (m[1].substring(0, 3)) {
            case 'yea':
                now.setFullYear(now.getFullYear() + num);
                break;
            case 'wee':
                now.setDate(now.getDate() + (num * 7));
                break;
            case 'day':
                now.setDate(now.getDate() + num);
                break;
            case 'hou':
                now.setHours(now.getHours() + num);
                break;
            case 'min':
                now.setMinutes(now.getMinutes() + num);
                break;
            case 'sec':
                now.setSeconds(now.getSeconds() + num);
                break;
            case 'mon':
                if (m[1] === "month") {
                    now.setMonth(now.getMonth() + num);
                    break;
                }
                // fall through
            default:
                var day = __is.day[m[1].substring(0, 3)];
                if (typeof day !== 'undefined') {
                    var diff = day - now.getDay();
                    if (diff === 0) {
                        diff = 7 * num;
                    } else if (diff > 0) {
                        if (m[0] === 'last') {
                            diff -= 7;
                        }
                    } else {
                        if (m[0] === 'next') {
                            diff += 7;
                        }
                    }
                    now.setDate(now.getDate() + diff);
                    now.setHours(0, 0, 0, 0); // when jumping to a specific last/previous day of week, PHP sets the time to 00:00:00
                }
            }
            break;

        default:
            if (/\d+/.test(m[0])) {
                num *= parseInt(m[0], 10);

                switch (m[1].substring(0, 3)) {
                case 'yea':
                    now.setFullYear(now.getFullYear() + num);
                    break;
                case 'mon':
                    now.setMonth(now.getMonth() + num);
                    break;
                case 'wee':
                    now.setDate(now.getDate() + (num * 7));
                    break;
                case 'day':
                    now.setDate(now.getDate() + num);
                    break;
                case 'hou':
                    now.setHours(now.getHours() + num);
                    break;
                case 'min':
                    now.setMinutes(now.getMinutes() + num);
                    break;
                case 'sec':
                    now.setSeconds(now.getSeconds() + num);
                    break;
                }
            } else {
                return false;
            }
            break;
        }
        return true;
    };

    match = str.match(/^(\d{2,4}-\d{2}-\d{2})(?:\s(\d{1,2}:\d{2}(:\d{2})?)?(?:\.(\d+))?)?$/);
    if (match !== null) {
        if (!match[2]) {
            match[2] = '00:00:00';
        } else if (!match[3]) {
            match[2] += ':00';
        }

        s = match[1].split(/-/g);

        s[1] = __is.mon[s[1] - 1] || s[1];
        s[0] = +s[0];

        s[0] = (s[0] >= 0 && s[0] <= 69) ? '20' + (s[0] < 10 ? '0' + s[0] : s[0] + '') : (s[0] >= 70 && s[0] <= 99) ? '19' + s[0] : s[0] + '';
        return parseInt(this.strtotime(s[2] + ' ' + s[1] + ' ' + s[0] + ' ' + match[2]) + (match[4] ? match[4] / 1000 : ''), 10);
    }

    var regex = '([+-]?\\d+\\s' + '(years?|months?|weeks?|days?|hours?|min|minutes?|sec|seconds?' + '|sun\\.?|sunday|mon\\.?|monday|tue\\.?|tuesday|wed\\.?|wednesday' + '|thu\\.?|thursday|fri\\.?|friday|sat\\.?|saturday)' + '|(last|next)\\s' + '(years?|months?|weeks?|days?|hours?|min|minutes?|sec|seconds?' + '|sun\\.?|sunday|mon\\.?|monday|tue\\.?|tuesday|wed\\.?|wednesday' + '|thu\\.?|thursday|fri\\.?|friday|sat\\.?|saturday))' + '(\\sago)?';

    match = str.match(new RegExp(regex, 'gi')); // Brett: seems should be case insensitive per docs, so added 'i'
    if (match === null) {
        return false;
    }

    for (i = 0, l = match.length; i < l; i++) {
        if (!process(match[i].split(' '))) {
            return false;
        }
    }

    return now.getTime() / 1000 | 0;
}