function SearchKeyHandler(e,btn)
{
	// capture key event
	var KeyID = (window.event) ? event.keyCode : e.keyCode;
	// test for Enter key
	if(KeyID==13) {
		// cancel the default submit
		e.returnValue=false;
		e.cancel = true;
		// submit the form by programmatically clicking the specified button
		btn.click();
	}
}

function showBannerAd() {
    //var thePath="../"
						var mfmax=4;
						var mfthisban=1;
						var mfbanner=new mfMakeBanArray(mfmax);
					
						mfbanner[1]="<img src='images\/SubmitLg.gif' border='0' alt=''>";
						mfbanner[2]="<img src='images\/ResourceLg.gif' border='0' alt=''>";
						mfbanner[3]="<img src='images\/CompellingLg.gif' border='0' alt=''>";
						mfbanner[4]="<img src='images\/OnDemandLg.gif' border='0' alt=''>";
					
						function mfMakeBanArray(n)
								{
								this.length=n;
								for (var i=1; i<=n;i++)
										{
										this[i]="";
										}
								return this;
								}
								
						function mfrand(n)
								{
								today=new Date();
								num=today.getSeconds() * today.getTime() * Math.sqrt(today.getMinutes());
								rnum=(num % n) +1;
								return Math.floor(rnum);
								}
								
					
								mfthisBan=mfrand(mfmax);
								document.write(mfbanner[mfthisBan]);
					
}

function initVideoSearch() {
    // get and set default view and term
    var q = new Querystring();
    var searchTerm = q.get('q');
    if (searchTerm != null) {
        $('video_txt').value = searchTerm;
    }
    changeSearchType('video',$('video_link'));
}

function swapImage(element, newImage) {
    element.src = newImage;
}

function showCategories() {
    var el = $("categoryListContainer")
    el.style.display = "block";
}

function hideCategories() {
    var el = $("categoryListContainer")
    el.style.display = "none";
}

function highlightCategoryTitle(el) {
    el.style.border = "1px solid #cccccc";
}

function unhighlightCategoryTitle(el) {
    el.style.border = "1px solid white";
}

function toggleCategoryList(event) {
    
    var myElement = Event.element(event);
    var divElement = $('categoryListContainer');
    
    if (myElement.descendantOf('categoryListContainer')) {  
        (myElement.id == 'hypCloseCategories') ? hideCategories() : showCategories();
    }
    else {
        (myElement.id == 'imgArrow') ? showCategories() : hideCategories();
    }   
    
}