//rotator obrazow. http://zsyp.pl
//darecki

function Rotation(){this.settings = new Array();this.settings['pos'] = 0;this.settings['timers'] = 0;this.settings['preLoad'] = Array();this.settings['pics'] = Array();this.settings['fadeStarted']=0;this.settings['fadeTime']=400;this.settings['fadeSpeed']= Math.round(this.settings['fadeTime'] / 100);this.settings['roto']= "dz_Rotation";this.settings['imgSrc'] = '';};Rotation.prototype.init = function(key,settings){this.settings[key] = settings;};Rotation.prototype.TransStart = function(){if(this.settings.fadeStarted == 0){this.fadeTrans();}};Rotation.prototype.fadeTrans = function(){if(this.settings.fadeStarted == 0){this.settings.fadeStarted = 1;this.opacity(100,0);setTimeout(this.settings.roto+".fadeTrans()",this.settings.fadeTime);
}else{document.getElementById(this.settings.loadID).style.backgroundImage = "url("+this.settings.imgSrc+")";this.opacity(0, 100);setTimeout(this.settings.roto+".TransComplete()",this.settings.fadeTime);}};
Rotation.prototype.TransComplete = function(){this.settings.fadeStarted = 0;};Rotation.prototype.opacity = function(opcStart, opcEnd){var timer = 0;if(opcStart > opcEnd){for(i = opcStart; i >= opcEnd; i--){setTimeout(this.settings.roto+".changeOpac(" + i + ")",(timer * this.settings.fadeSpeed));timer++;}}else if(opcStart < opcEnd){for(i = opcStart; i <= opcEnd; i++){setTimeout(this.settings.roto+".changeOpac(" + i + ")",(timer * this.settings.fadeSpeed));timer++;}}return true;};Rotation.prototype.changeOpac = function(opacity){var object = document.getElementById(this.settings.loadID).style;object.opacity = (opacity / 100);object.MozOpacity = (opacity / 100);object.KhtmlOpacity = (opacity / 100);object.filter = "alpha(opacity=" + opacity + ")";};Rotation.prototype.preloadImg = function(src){if(!this.settings.preLoad[src]){var img=new Image();img.src = "templates/images/"+src;this.settings.preLoad[src] = img;}else img = this.settings.preLoad[src];this.settings.imgSrc = img.src;};Rotation.prototype.loadPics = function(){this.settings.pos = this.settings.pos + 1 >= this.settings.pic.length? 0: this.settings.pos + 1;this.preloadImg(this.settings.pic[this.settings.pos]);this.TransStart();clearInterval(this.settings.timers);this.settings.timers = setInterval(this.settings.roto+".loadPics()",4000) ;};