var GridContainerWidth;
var MainContainerWidth;

function setActiveStyleSheet(title) 
{
	var LoadingPage = document.getElementById('LoadingPage');
	var i, a, main;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
      a.disabled = true;
      if(a.getAttribute("title") == title) a.disabled = false;
    }
  }
  try
  {
		// set up loading page div
		if (LoadingPage)
		{
			LoadingPage.className = 'loadingpagevisible';
		}
  
		var MainBodyTable = document.getElementById('MainBodyTable');
		var GridContainer = document.getElementById('MasterPage_PageContent_GridContainer');
		var ChildTabsContainer = document.getElementById('ChildTabsContainer');
		var PageGroupTabsContainer = document.getElementById('PageGroupTabsContainer');
		var CatPageTabEditContainer = document.getElementById('CatPageTabEditContainer');
		var Footer = document.getElementById('Footer');
		var TreeMenu = document.getElementById('MasterPage_WebPartTreeMenu');
		GetDimensions();
		if (title == null)
		{
			title = 'full';
		}
		switch (title)
		{
			case 'narrow':
				// 
				MainContainerWidth = windowwidth / 1.5;
				if (MainContainerWidth < 800)
				{
					MainContainerWidth = 800;
				}
				MainContainerWidth = windowwidth-50;
				break;
			case 'medium':
				MainContainerWidth = windowwidth-50;
				//MainContainerWidth = windowwidth / 1.15;	
				break;
			case 'full':
				MainContainerWidth = windowwidth-50;
				break;
		}		 
		if (MainBodyTable)
		{
			MainBodyTable.style.width = (MainContainerWidth) + 'px';
			MainBodyTable.style.height = (windowheight - 200) + 'px';
		}
		if (Footer)
		{
			Footer.style.width = (MainContainerWidth) + 'px';
		}
		GridContainerWidth = MainContainerWidth - 40;
		if (TreeMenu != null)
		{
			GridContainerWidth = GridContainerWidth - TreeMenu.offsetWidth;
		}
		if (GridContainer != null)
		{
			GridContainer.style.width = (GridContainerWidth) + 'px';
		}
		if (ChildTabsContainer)
		{							
			ChildTabsContainer.style.width = (GridContainerWidth) + 'px';
		}
		if (PageGroupTabsContainer)
		{
			PageGroupTabsContainer.style.width = (GridContainerWidth) + 'px';
		}
		if (CatPageTabEditContainer)
		{
			CatPageTabEditContainer.style.width = (GridContainerWidth) + 'px';
		}
  }
  catch (err) {
	  // nothing to do just ignore
	  //alert('error in setActiveStyleSheet:' + err);
	}
	// hide loading page div	
	if (LoadingPage)
	{
		self.setTimeout('hideLoadingPage()', 500);
	}
}

function hideLoadingPage()
{
	try
	{
		var LoadingPage = document.getElementById('LoadingPage');
		if (LoadingPage)
		{
			LoadingPage.className = 'loadingpagehidden';
		}
	}	
	catch (err) {
	  // nothing to do just ignore
	}
}

function getActiveStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled) return a.getAttribute("title");
  }
  return null;
}

function getPreferredStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1
       && a.getAttribute("rel").indexOf("alt") == -1
       && a.getAttribute("title")
       ) return a.getAttribute("title");
  }
  return null;
}

function createCookie(name,value,days) {
  if (days) {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    var expires = "; expires="+date.toGMTString();
  }
  else expires = "";
  document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
  var nameEQ = name + "=";
  var ca = document.cookie.split(';');
  for(var i=0;i < ca.length;i++) {
    var c = ca[i];
    while (c.charAt(0)==' ') c = c.substring(1,c.length);
    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
  }
  return null;
}

window.onunload = function(e) {
  var title = getActiveStyleSheet();
  createCookie("style", title, 365);
}

function SetupStyleSheetAndPanel()
{
	var cookie = readCookie("style");
	var title = cookie ? cookie : getPreferredStyleSheet();
	if (title == "null")
	{
		title = "narrow";
	}
	setActiveStyleSheet(title);
}