Miro = {version: '1.0'};


// for old browsers
window["undefined"] = window["undefined"];

Miro.apply = function(o, c, defaults){
    if(defaults){
        // no "this" reference for friendly out of scope calls
        Miro.apply(o, defaults);
    }
    if(o && c && typeof c == 'object'){
        for(var p in c){
            o[p] = c[p];
        }
    }
    return o;
};


(function() {
    var idSeed = 0;
    var ua = navigator.userAgent.toLowerCase();

    var isStrict = document.compatMode == "CSS1Compat",
        isOpera = ua.indexOf("opera") > -1,
        isSafari = (/webkit|khtml/).test(ua),
        isSafari3 = isSafari && ua.indexOf('webkit/5') != -1,
        isIE = !isOpera && ua.indexOf("msie") > -1,
        isIE7 = !isOpera && ua.indexOf("msie 7") > -1,
        isGecko = !isSafari && ua.indexOf("gecko") > -1,
        isBorderBox = isIE && !isStrict,
        isWindows = (ua.indexOf("windows") != -1 || ua.indexOf("win32") != -1),
        isMac = (ua.indexOf("macintosh") != -1 || ua.indexOf("mac os x") != -1),
        isAir = (ua.indexOf("adobeair") != -1),
        isLinux = (ua.indexOf("linux") != -1),
        isSecure = window.location.href.toLowerCase().indexOf("https") === 0;

    // remove css image flicker
	if(isIE && !isIE7){
        try{
            document.execCommand("BackgroundImageCache", false, true);
        }catch(e){}
    }

	Miro.apply(Miro, {
        isReady : false,
        isStrict : isStrict,
        isSecure : isSecure,
        isOpera : isOpera,
        isSafari : isSafari,
        isSafari3 : isSafari3,
        isSafari2 : isSafari && !isSafari3,
        isIE : isIE,
        isIE6 : isIE && !isIE7,
        isIE7 : isIE7,
        isGecko : isGecko,
        isBorderBox : isBorderBox,
        isLinux : isLinux,
        isWindows : isWindows,
        isMac : isMac,
        isAir : isAir,

        emptyFn : function(){},
        emptyEventFn : function(event){},
        namespace : function(){
            var a=arguments, o=null, i, j, d, rt;
            for (i=0; i<a.length; ++i) {
                d=a[i].split(".");
                rt = d[0];
                eval('if (typeof ' + rt + ' == "undefined"){' + rt + ' = {};} o = ' + rt + ';');
                for (j=1; j<d.length; ++j) {
                    o[d[j]]=o[d[j]] || {};
                    o=o[d[j]];
                }
            }
        },

		getPageSize: function() {
				
			 var xScroll, yScroll;
			
			if (window.innerHeight && window.scrollMaxY) {	
				xScroll = window.innerWidth + window.scrollMaxX;
				yScroll = window.innerHeight + window.scrollMaxY;
			} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
				xScroll = document.body.scrollWidth;
				yScroll = document.body.scrollHeight;
			} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
				xScroll = document.body.offsetWidth;
				yScroll = document.body.offsetHeight;
			}
			
			var windowWidth, windowHeight;
			
			if (self.innerHeight) {	// all except Explorer
				if(document.documentElement.clientWidth){
					windowWidth = document.documentElement.clientWidth; 
				} else {
					windowWidth = self.innerWidth;
				}
				windowHeight = self.innerHeight;
			} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
				windowWidth = document.documentElement.clientWidth;
				windowHeight = document.documentElement.clientHeight;
			} else if (document.body) { // other Explorers
				windowWidth = document.body.clientWidth;
				windowHeight = document.body.clientHeight;
			}	
			
			// for small pages with total height less then height of the viewport
			if(yScroll < windowHeight){
				pageHeight = windowHeight;
			} else { 
				pageHeight = yScroll;
			}
		
			// for small pages with total width less then width of the viewport
			if(xScroll < windowWidth){	
				pageWidth = xScroll;		
			} else {
				pageWidth = windowWidth;
			}

			return [pageWidth,pageHeight];
		},

		getScrollOffsets: function() {
			return Element._returnOffset(
				window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft,
				window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop);
		},
		
		alertBox: null,
		
		chkEmail: function(email){
			if (!(/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(email))){
				return false;
			}
			
			return true;
		},
		
		chkNumber: function(number){
			if ( (/[^0-9]/img).match(number) ){
				return false;
			}
			
			return true;
		}
    });
})();

Miro.namespace("Miro.Controls");

Miro.apply(Date.prototype, {
	getElapsed : function(date) {
		return Math.abs((date || new Date()).getTime()-this.getTime());
	}
});

Miro.onReady = function(fn){
	
	var fncLoad = function(){
		fn();
	};

	document.observe("dom:loaded", fncLoad);
};