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);}
	
	var popover = {
	"target":"popover2571",
	"image" : "popover_image.png",
	"width" : 365,              
	"height" : 370,
	"exit_button" : {
		"left":269,
		"top":22,
		"width":63,
		"height":52
	},
	"link_button" : {
		"left":18,
		"top":73,
		"width":328,
		"height":279
		
	},


	"debug" : false,
	"auto_hide" : 30, 
	"link" : "http://9001blueprint.com",
	"cookiename" : "websitecookie",
	"cookiedays" : 30,
	"rule" : "session",	
	"time_out" : 60,
	"position_left" : "50%",   	
	"position_top" : "50%"
};

function hide_popover(){document.getElementById(popover.target).style.display = "none";}
function clearInnerHTML(obj){while(obj.firstChild) obj.removeChild(obj.firstChild);}


window.onload = function(){
		
		if(popover.rule != "never" || (popover.rule == "session" && 0 == 0))
		{
			var showPopover = false;
			if(popover.rule == "always"){showPopover = true;}
			else
			{
				var cookieData;
				var cookieArray;
				var date = new Date();
				var time = date.getTime();
				
				cookieData = readCookie(popover.cookiename);
				if(cookieData){cookieArray = cookieData.split("@:@");}
				
				if(!cookieData || cookieArray[0] != popover.rule || (cookieArray[0] == "timeout" && time >= cookieArray[1]))
				{
					if(popover.rule == "timeout"){time = parseInt(time + parseInt(popover.time_out) * 1000);}
					var cookieValue = popover.rule + "@:@" + time + "@:@";
					
					createCookie(popover.cookiename,cookieValue,popover.cookiedays);
					cookieData = readCookie(popover.cookiename);
					showPopover = true;
				}
			}
			
			if(showPopover)
			{
				var createNew = true;
				
				var o = document.getElementById(popover.target);
				if(o){createNew = false; clearInnerHTML(o);}
				else{o = document.createElement("div"); o.id = popover.target;}
				
				
				var exitButtonDiv = document.createElement("div");
				exitButtonDiv.id= popover.target+"_exit_button";
				
				var linkButtonDiv = document.createElement("div");
				linkButtonDiv.id= popover.target+"_link_button";
				
				o.style.position = "absolute";
				
				if ( popover.position_left.search(/\%/) >= 0 ){
					var window_width = window.innerWidth;
					if ( typeof ( window_width ) != "number" ){window_width = document.body.clientWidth;}
					var percentage = parseInt(popover.position_left,10) / 100;
					var left = Math.floor( percentage * window_width );
					
					left -= (popover.width/2);
					o.style.left =  Math.floor(left) + "px";
				} else {o.style.left = popover.position_left;}
				
				if ( popover.position_top.search(/\%/) >= 0 ){
					var window_height = window.innerHeight;
					
					if ( typeof ( window_height ) != "number" ){
						window_height = document.documentElement.clientHeight;
						if ( window_height == 0 ){window_height = document.body.clientHeight;}
					}
					var percentage = parseInt(popover.position_top,10) / 100;
					var top = Math.floor( percentage * window_height );
					top -= (popover.height/2);
					o.style.top = top + "px";				
				} else {o.style.top = popover.position_top;}
				
				o.style.width = popover.width + "px";
				o.style.height = popover.height + "px";
				o.style.backgroundImage = "url(" + popover.image + ")";
				
				exitButtonDiv.style.position = "absolute";
				exitButtonDiv.style.left = popover.exit_button.left + "px";
				exitButtonDiv.style.top = popover.exit_button.top + "px";
				exitButtonDiv.style.width = popover.exit_button.width + "px";
				exitButtonDiv.style.height = popover.exit_button.height + "px";
				exitButtonDiv.style.cursor = "pointer";
				exitButtonDiv.style.zIndex = 100;
				exitButtonDiv.onclick = function(){hide_popover();};
		
				linkButtonDiv.style.position = "absolute";
				linkButtonDiv.style.left = popover.link_button.left + "px";
				linkButtonDiv.style.top = popover.link_button.top + "px";
				linkButtonDiv.style.width = popover.link_button.width + "px";
				linkButtonDiv.style.height = popover.link_button.height + "px";
				linkButtonDiv.style.cursor = "pointer";
				linkButtonDiv.onclick = function(){window.location = popover.link;}
				
				if ( popover.auto_hide > 0 ){setTimeout( hide_popover, popover.auto_hide * 1000 );}
				
				if ( popover.debug == true ){
					exitButtonDiv.style.border = "2px solid red";
					linkButtonDiv.style.border = "2px solid red";
				}
				
				o.appendChild(exitButtonDiv);
 				o.appendChild(linkButtonDiv);
				
				if(createNew){document.body.appendChild(o);}
				
			}
		}
};