/**
* DOM utilities
* @class
*/
DOMUtils = function(){
}

DOMUtils.getElement = function( obj ){
  if(document.getElementById){
  	obj = document.getElementById( obj );
  }else if(document.all){
	obj = document.all.item( obj );
  } else {
	obj = null;
  }
  return obj;
}

DOMUtils.getTagText = function( xmlElement, tagName ){
	var tempNodes = xmlElement.getElementsByTagName(tagName);
	if( tempNodes.length == 1 ){
		return tempNodes[0].text;
	} else {
		return null;
	}
}

DOMUtils.createElementWithText = function(elementName, text ){
	var e = document.createElement(elementName);
	var txtNode = document.createTextNode(text);
	e.appendChild(txtNode);
	return e;
};

DOMUtils.createElement = function(elementName ){
	var e = document.createElement(elementName);
	return e;
};
/**
 * Sets a Cookie with the given name and value.
 *
 * name       Name of the cookie
 * value      Value of the cookie
 * [expires]  Expiration date of the cookie (default: end of current session)
 * [path]     Path where the cookie is valid (default: path of calling document)
 * [domain]   Domain where the cookie is valid
 *              (default: domain of calling document)
 * [secure]   Boolean value indicating if the cookie transmission requires a
 *              secure transmission
 */
function setCookie(name, value, expires, path, domain, secure) {
    document.cookie= name + "=" + escape(value) +
        ((expires) ? "; expires=" + expires.toGMTString() : "") +
        ((path) ? "; path=" + path : "") +
        ((domain) ? "; domain=" + domain : "") +
        ((secure) ? "; secure" : "");
};




/**
 *  @returns void
 *	@param name - name of the cookie
 *  @param origToValue
 *  @param value - updated in this method and passed along to setCookie
*/
var value;
function updateCookie(name, coupon) {
	if(value == null){
		value = coupon;
	} else {
		value=value+';'+coupon;
	}
	setCookie(name, value);
};


/**
 * Gets the value of the specified cookie.
 *
 * name  Name of the desired cookie.
 *
 * Returns a string containing value of specified cookie,
 *   or null if cookie does not exist.
 */
function getCookie(name) {
    var dc = document.cookie;
    var prefix = name + "=";
    var begin = dc.indexOf("; " + prefix);
    if (begin == -1) {
        begin = dc.indexOf(prefix);
        if (begin != 0) return null;
    } else {
        begin += 2;
    }
    var end = document.cookie.indexOf(";", begin);
    if (end == -1) {
        end = dc.length;
    }
    return unescape(dc.substring(begin + prefix.length, end));
};

/**
 * Deletes the specified cookie.
 *
 * name      name of the cookie
 * [path]    path of the cookie (must be same as path used to create cookie)
 * [domain]  domain of the cookie (must be same as domain used to create cookie)
 */
function deleteCookie(name, path, domain) {
    if (getCookie(name)) {
        document.cookie = name + "=" +
            ((path) ? "; path=" + path : "") +
            ((domain) ? "; domain=" + domain : "") +
            "; expires=Thu, 01-Jan-70 00:00:01 GMT";
    }
};

function couponClipped(sectionNumber) {
	var myCouponLink = "myCouponLink_"+sectionNumber;
	var myCouponLinkSection = "myCouponLinkSection_"+sectionNumber;
	document.getElementById('btnClip_'+sectionNumber).style.display="none";
	document.getElementById(myCouponLink).style.display="block";
	document.getElementById('btnClipSection_'+sectionNumber).style.display="none";
	document.getElementById(myCouponLinkSection).style.display="block";
}
function couponWidgetClipped(sectionNumber) {
	var myCouponLink = "myCouponLink_"+sectionNumber;
	document.getElementById('btnClip_'+sectionNumber).style.display="none";
	document.getElementById(myCouponLink).style.display="block";
}




function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}


/**********Show Hide ******/

function show(object) {
	document.getElementById(object).style.visibility = 'visible';
	document.getElementById(object).style.position = 'relative';
	document.getElementById(object).style.display = 'block';
}
function hide(object) {
	document.getElementById(object).style.visibility = 'hidden';
	document.getElementById(object).style.position = 'absolute';
	document.getElementById(object).style.display = 'none';
}

function showCoupons() {
	MM_swapImage('couponsImage','','/images/supertarget/2007/couponsSpecials/widget_coupon_on.gif',1);
	MM_swapImage('specialsImage','','/images/supertarget/2007/couponsSpecials/widget_special_off.gif',1);
	hide('specialsContainer');
 	show('couponsContainer');

}
function showSpecials() {
	MM_swapImage('specialsImage','','/images/supertarget/2007/couponsSpecials/widget_special_on.gif',1);
	MM_swapImage('couponsImage','','/images/supertarget/2007/couponsSpecials/widget_coupon_off.gif',1);
	show('specialsContainer');
 	hide('couponsContainer');
}

function openNewWindow(url)
{
  window.open(url+"",null,"left = 0 ,top = 0,resizable=0,scrollbars=1,menubar=0, height=675,width=600");
}

function openPrintCoupons(url)
{
  window.open(url+"",null,"left = 0 ,top = 0,scrollbars=1,menubar=0,width=600");
}