function init_my_pop_up(delay)//delay in seconds
			{
				setTimeout('show_my_pop_up()',delay*1000);
			}
			function show_my_pop_up()
			{
				var check_if_shown=get_cookie("mypopupcookie");
				if(check_if_shown!="shown")
					{
						document.getElementById('my_popup_container').style.display='block';
						set_cookie("mypopupcookie","shown",7);//replace null with 1,2,3... to set the days between appearances
					}
				else
					;
			}
			function hide_my_pop_up()
			{
				document.getElementById('my_popup_container').style.display='none';
			}

			function set_cookie(c_name,value,expiredays)
			{
				var exdate=new Date();
				exdate.setDate(exdate.getDate()+expiredays);

				var c_value=escape(value) + ((expiredays==null) ? "" : "; expires="+exdate.toUTCString());
				document.cookie=c_name + "=" + c_value;
				
			}
			function get_cookie(c_name)
			{
				if (document.cookie.length>0)
			  	{
			  		c_start=document.cookie.indexOf(c_name + "=");
			  		if (c_start!=-1)
			    		{
			    			c_start=c_start + c_name.length+1;
			    			c_end=document.cookie.indexOf(";",c_start);
			    			if (c_end==-1) c_end=document.cookie.length;
				    			return unescape(document.cookie.substring(c_start,c_end));
			    		}
			  	}
				return "";
			}