/***************************/
//@Author: Adrian "yEnS" Mato Gondelle
//@website: www.yensdesign.com
//@email: yensamg@gmail.com
//@license: Feel free to use it, but keep this credits please!					
/***************************/

//SETTING UP OUR POPUP
//0 means disabled; 1 means enabled;
var popupStatus = 0;

//loading popup with jQuery magic!
function loadPopup(){
	//loads popup only if it is disabled
	if(popupStatus==0){
		$("#backgroundPopup").css({
			"opacity": "0.7"
		});
		$("#backgroundPopup").fadeIn("slow");
		$("#popupVideo").fadeIn("slow");
		popupStatus = 1;
	}
}

//disabling popup with jQuery magic!
function disablePopup(){
	//disables popup only if it is enabled
	if(popupStatus==1){
		$("#backgroundPopup").fadeOut("slow");
		$("#popupVideo").fadeOut("slow");
		 if (document.getElementsByTagName) {
			//Get all the tags of type object in the page.
			var objs = document.getElementsByTagName("object");
			for (i=0; i<objs.length; i++) {
			  // Clear out the HTML content of each object tag
			  // to prevent an IE memory leak issue.
			  objs[i].outerHTML = "";
			}
		  }
		 //var presentation = document.getElementById( 'presentation' );
		 //alert(presentation);
		 //delete window.presentation;
		
		popupStatus = 0;
	}
}
	 
//centering popup
function centerPopup()
{
	try
	{
		//request data for centering
		var windowWidth = document.documentElement.clientWidth;
		var windowHeight = document.documentElement.clientHeight;
		var myWidth = 0, myHeight = 0;
		  if( typeof( window.innerWidth ) == 'number' ) {
			//Non-IE
			windowWidth = window.innerWidth;
			windowHeight = window.innerHeight;
		  } 
		  else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) 
		  {
			//IE 6+ in 'standards compliant mode'
			windowWidth = document.documentElement.clientWidth;
			windowHeight = document.documentElement.clientHeight;
		  } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
			//IE 4 compatible
			windowWidth = document.body.clientWidth;
			windowHeight = document.body.clientHeight;
		  }
		
		
		var popupHeight = $("#popupVideo").height();
		var popupWidth = $("#popupVideo").width(); 
		//centering
		$("#popupVideo").css({
			"position": "absolute",
			"top": windowHeight/2-popupHeight/2,
			"left": windowWidth/2-popupWidth/2
		});
		//only need force for IE6
		
		$("#backgroundPopup").css({
			"height": windowHeight
		});
	}
	catch(e)
	{
		alert(e);	
	}
}


//CONTROLLING EVENTS IN jQuery
$(document).ready(function(){
	
	//LOADING POPUP
	//Click the button event!
	$("#watch_video").click(function(){
		//centering with css
		centerPopup();
		//load popup
		loadPopup();
	});		
	//CLOSING POPUP
	//Click the x event!
	$("#popupVideoClose").click(function(){
		disablePopup();
	});
	//Click out event!
	$("#backgroundPopup").click(function(){
		disablePopup();
	});
	//Press Escape event!
	$(document).keypress(function(e){
		if(e.keyCode==27 && popupStatus==1){
			disablePopup();
		}
	});

});