// Basic JavaScript Functions Used in the Blog Page

function showDiv(name){
	document.getElementById(name).style.display="block";
}
function hideDiv(name){
	document.getElementById(name).style.display="none";
}

function addComment(artID){
	var theDiv=document.getElementById("addCommentContainer");
	//add the correct item to the hidden field for editing
	document.forms['commentForm'].artID.value=artID;
	// calculate the position of the ideal placement in the y axis for the form
	// the height of the window is 200px
	//var winHeight=window.innerHeight;
	//alert(winHeight);
	//if(winHeight>>200){
		//var xHeight=winHeight-240;
		//theDiv.style.top=xHeight+"px";
	//}
	theDiv.style.display="block";
	document.forms['commentForm'].author.focus();
	//set the activeForm variable to commentForm for the toolbar
	document.forms['pageForm'].activeForm.value="commentForm";
}

function addArticle(){
	var theDiv=document.getElementById("addArticleContainer");
	// calculate the position of the ideal placement in the y axis for the form
	// the height of the window is 250px
	//var winHeight=window.innerHeight;
	//var winHeight=500;
	//alert(winHeight);
	//if(winHeight>250){
		//var xHeight=winHeight-300;
		//theDiv.style.top=xHeight+"px";
		//theDiv.style.top="140px";
	//}
	theDiv.style.display="block";
	document.forms['articleForm'].author.focus();
	document.forms['pageForm'].activeForm.value="articleForm";
}

function deleteArticle(artID){
	if(confirm("Delete this article and any comments for it?")){
		theURL="blog/delete_article.php?artID="+artID;
		document.location=theURL;
	}
}

function editArticle(artID){
	theURL="?editID="+artID;
	document.location=theURL;
}

function editSingleArticle(artID){
	theURL="show_article.php?articleID="+artID+"&editID="+artID;
	document.location=theURL;
}

function changeArticleOrder(){
	theValue=document.forms['selectSortingForm'].chooseSortOrder.options[document.forms['selectSortingForm'].chooseSortOrder.options.selectedIndex].value;
	theURL="?sortOrder="+theValue;
	document.location=theURL;
}
function changeArticleOrder2(){
	var theValue=document.forms['selectSortingForm'].chooseSortOrder.options[document.forms['selectSortingForm'].chooseSortOrder.options.selectedIndex].value;
	var searchString=document.getElementById('searchString').value;
	var theURL="blog_search.php?sortOrder="+theValue+"&search="+searchString;
	document.location=theURL;
}

/*
functions to click and drag a window
*/
var oMoveDiv = null;
var nMoveDivOffsetLeft = null;
var nMoveDivOffsetTop = null;

function StartMove(e, oHeaderDiv)
{
     oMoveDiv = oHeaderDiv.parentNode;
     nMoveDivOffsetLeft = e.clientX - oMoveDiv.offsetLeft;
     nMoveDivOffsetTop = e.clientY - oMoveDiv.offsetTop;
}

function Move(e)
{
     if (oMoveDiv == null)
     {
          return;
     }

     if (document.all)
     {
          e = event;
     }

     oMoveDiv.style.left = e.clientX - nMoveDivOffsetLeft + "px";
     oMoveDiv.style.top = e.clientY - nMoveDivOffsetTop + "px";
}

function StopMove()
{
     oMoveDiv = null;
}

document.documentElement.onmousemove = Move;
document.documentElement.onmouseup = StopMove;