function createCookie(name,value,days) {

	name = name.replace(/\W/g,''); // remove non-word characters;
	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) {

	name = name.replace(/\W/g,''); // remove non-word characters;
	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) {
	name = name.replace(/\W/g,''); // remove non-word characters;
	createCookie(name,"",-1);
}

function HideLoading()
{
	var div = document.getElementById("LoadingDiv");
	div.style.visibility = "hidden"; 
	
}

function DisplayLoading()
{ 
	var Xwidth = 300; //550;
	var Yheight = 70; //400;
	var divid = "LoadingDiv";

	// First, determine how much the visitor has scrolled 

	var scrolledX, scrolledY; 
	if( self.pageYOffset ) 
	{ 
		scrolledX = self.pageXOffset; 
		scrolledY = self.pageYOffset; 
	} else if( document.documentElement && document.documentElement.scrollTop )
	{ 
		scrolledX = document.documentElement.scrollLeft; 
		scrolledY = document.documentElement.scrollTop; 
	} else if( document.body ) 
	{ 
		scrolledX = document.body.scrollLeft; 
		scrolledY = document.body.scrollTop; 
	} 

	// Next, determine the coordinates of the center of browser's window 

	var centerX, centerY; 
	if( self.innerHeight ) 
	{ 
		centerX = self.innerWidth; 
		centerY = self.innerHeight; 
	} else if( document.documentElement && document.documentElement.clientHeight ) 
	{ 
		centerX = document.documentElement.clientWidth; 
		centerY = document.documentElement.clientHeight; 
	} else if( document.body )
	{ 
		centerX = document.body.clientWidth; 
		centerY = document.body.clientHeight; 
	} 

	// Xwidth is the width of the div, Yheight is the height of the 
	// divid being displayed 
	var leftOffset = scrolledX + (centerX - Xwidth) / 2; 
	var topOffset = scrolledY + (centerY - Yheight) / 2; 
	// The initial width and height of the div can be set in the 
	// style sheet with display:none;  
	var o=document.getElementById(divid); 
	var r=o.style; 
	r.position='absolute'; 
	r.top = topOffset + 'px'; 
	r.left = leftOffset + 'px'; 
	r.display = "block"; 
	r.visibility = "visible"; 
}