/***************************************/
/*   functions related to tabs         */
/***************************************/

function showPDFfile(pdffile)
{
	var pdfli = document.getElementById("pdfli");
	pdfli.style.display = "inline";

	var maintab = document.getElementById("maintab");
	maintab.style.visibility = "hidden";
	maintab.style.display = "none";

	var pdftab = document.getElementById("pdftab");
	pdftab.style.visibility = "visible";
	pdftab.style.display = "block";

	var pdfview = document.getElementById("pdfview");
	pdfview.src='stack/'+pdffile;
}

function showMainTab()
{
	var mainli = document.getElementById("mainli");
	mainli.style.background = "#FFF7CD";
	mainli.style.borderBottom = "none";
	mainli.style.paddingBottom ="6px";

	var pdfli = document.getElementById("pdfli");
	pdfli.style.background = "#FFF3B3";
	pdfli.style.borderBottom = "1px";
	pdfli.style.paddingBottom ="0px";

	var pdftab = document.getElementById("pdftab");
	pdftab.style.visibility = "hidden";
	pdftab.style.display = "none";

	var maintab = document.getElementById("maintab");
	maintab.style.visibility = "visible";
	maintab.style.display = "block";
}

function showPdfTab()
{
	var mainli = document.getElementById("mainli");
	mainli.style.background = "#FFF3B3";
	mainli.style.borderBottom = "1px";
	mainli.style.paddingBottom ="0px";

	var pdfli = document.getElementById("pdfli");
	pdfli.style.background = "#FFF7CD";
	pdfli.style.borderBottom = "none";
	pdfli.style.paddingBottom ="6px";

	var maintab = document.getElementById("maintab");
	maintab.style.visibility = "hidden";
	maintab.style.display = "none";

	var pdftab = document.getElementById("pdftab");
	pdftab.style.visibility = "visible";
	pdftab.style.display = "block";


}


/***************************************/
/*   functions related to authorview   */
/***************************************/
function deleteAuthor(php,id_author)
{
	var r = confirm("Are you sure that you want to delete this author: "+id_author);
	if (r == true)
	{
		var url=php+"?cmd=author_delete" +
			"&id_author="+id_author;
		window.location=url;
	}
}