function getCookie(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 "";
}