﻿/*
			Snow Effect Script
			Submitted by Altan d.o.o. (snow@altan.hr, http://www.altan.hr/snow/index.html)
			Permission granted to Dynamicdrive.com to feature script in archive
			For full source code to this script, visit http://dynamicdrive.com
			*/
			  //Configure below to change URL path to the snow image
			  var snowsrc="http://www.specinov.fr/flocon2.png"
			  // Configure below to change number of snow to render
			  var no = 10;
			  var ns4up = (document.layers) ? 1 : 0;  // browser sniffer
			  var ie4up = (document.all) ? 1 : 0;
			  var ns6up = (document.getElementById&&!document.all) ? 1 : 0;
			  var dx, xp, yp;    // coordinate and position variables
			  var am, stx, sty;  // amplitude and step variables
			  var i, doc_width = 800, doc_height = 600;
			  function snowNS() {  // Netscape main animation function
				for (i = 0; i < no; ++ i) {  // iterate for every dot
				  yp[i] += sty[i];
				  if (yp[i] > doc_height-50) {
					xp[i] = Math.random()*(doc_width-am[i]-30);
					yp[i] = 0;
					stx[i] = 0.02 + Math.random()/10;
					sty[i] = 0.7 + Math.random();
					doc_width = self.innerWidth;
					doc_height = self.innerHeight;
				  }
				  dx[i] += stx[i];
				  document.layers["dot"+i].top = yp[i];
				  document.layers["dot"+i].left = xp[i] + am[i]*Math.sin(dx[i]);
				}
				setTimeout("snowNS()", 10);
			  }
			  function snowIE_NS6() {  // IE and NS6 main animation function
				for (i = 0; i < no; ++ i) {  // iterate for every dot
				  yp[i] += sty[i];
				  if (yp[i] > doc_height-50) {
					xp[i] = Math.random()*(doc_width-am[i]-30);
					yp[i] = 0;
					stx[i] = 0.02 + Math.random()/10;
					sty[i] = 0.7 + Math.random();
					doc_width = ns6up?window.innerWidth : document.body.clientWidth;
					doc_height = ns6up?window.innerHeight : document.body.clientHeight;
				  }
				  dx[i] += stx[i];
				  if (ie4up){
				  document.all["dot"+i].style.pixelTop = yp[i];
				  document.all["dot"+i].style.pixelLeft = xp[i] + am[i]*Math.sin(dx[i]);
				  }
				  else if (ns6up){
				  document.getElementById("dot"+i).style.top=yp[i]+"px";
				  document.getElementById("dot"+i).style.left=xp[i] + am[i]*Math.sin(dx[i])+"px";
				  }   
				}
				setTimeout("snowIE_NS6()", 10);
			  }
  
  if ( window.addEventListener ) {
    var kkeys = [], konami = "38,38,40,40,37,39,37,39,66,65";
    window.addEventListener("keydown", function(e){
        kkeys.push( e.keyCode );
        if ( kkeys.toString().indexOf( konami ) >= 0 ){
			
			  if (ns4up||ns6up) {
				doc_width = self.innerWidth;
				doc_height = self.innerHeight;
			  } else if (ie4up) {
				doc_width = document.body.clientWidth;
				doc_height = document.body.clientHeight;
			  }
			  dx = new Array();
			  xp = new Array();
			  yp = new Array();
			  am = new Array();
			  stx = new Array();
			  sty = new Array();
			  for (i = 0; i < no; ++ i) {  
				dx[i] = 0;                        // set coordinate variables
				xp[i] = Math.random()*(doc_width-50);  // set position variables
				yp[i] = Math.random()*doc_height;
				am[i] = Math.random()*20;         // set amplitude variables
				stx[i] = 0.02 + Math.random()/10; // set step variables
				sty[i] = 0.7 + Math.random();     // set step variables
				if (ns4up) {                      // set layers
				  if (i == 0) {
					jQuery("body").append("<layer name=\"dot"+ i +"\" left=\"15\" top=\"15\" visibility=\"show\"><img src='"+snowsrc+"' border=\"0\"></layer>");
				  } else {
					jQuery("body").append("<layer name=\"dot"+ i +"\" left=\"15\" top=\"15\" visibility=\"show\"><img src='"+snowsrc+"' border=\"0\"></layer>");
				  }
				} else if (ie4up||ns6up) {
				  if (i == 0) {
					jQuery("body").append("<div id=\"dot"+ i +"\" style=\"POSITION: absolute; Z-INDEX: "+ i +"; VISIBILITY: visible; TOP: 15px; LEFT: 15px;\"><a href=\"http://www.specinov.fr\"><img src='"+snowsrc+"' border=\"0\"></a></div>"); 
				  } else {
					jQuery("body").append("<div id=\"dot"+ i +"\" style=\"POSITION: absolute; Z-INDEX: "+ i +"; VISIBILITY: visible; TOP: 15px; LEFT: 15px;\"><img src='"+snowsrc+"' border=\"0\"></div>");
				  }
				}
			  }
			  
            if (ns4up) {
				snowNS();
			} else if (ie4up||ns6up) {
				snowIE_NS6();
			}
		}
    }, true);
}

