// JavaScript Document

function set_style(){
	 var d = new Date();
	 var dayOfWeek = d.getDay();
	 
	 if(!document.cookie){
		 switch (dayOfWeek){
			
			 case 1: 
			   choose("blue")
			   break;
			 case 3: 
			   choose("blue")
			   break;  
			 case 5: 
			   choose("blue")
			   break;
			 case 2: 
			   choose("black")
			   break;
			  case 4: 
			   choose("black")
			   break;  
			 default:
			   choose("white")
			   break;
			 }
	 }
	}


	function choose(color){
	   var theme = "color";
	   var bg = "back";
	   value = color + '.css';
	   
	  eraseCookie(theme)
	  createCookie(theme,value,2);
	  eraseCookie(bg)
	  createCookie(bg,color,2);
	  
	  location.reload(true);   
	}
	  
function createCookie(name,value,days) {	
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";		
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0){
			
			return c.substring(nameEQ.length,c.length);
		}
	}
	
	return null;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}

function setBgd(color){
	  switch(color){
		  
		   case 'black':
		   		colo = "000000";
		   break;
		   case 'white':
		   		colo = "666666";
		   break;
		   case 'blue':
		   		colo = "0033FF";
		   break;
		   default: colo = "0033FF";
		   
		  }
		  return colo;
	}