function bigimageload(imgnumber){
		var x=document.getElementById("bigimage");
		x.src = "images/gallery/img" + imgnumber + ".jpg";
	}

	function leftimageload(filename, tdname){
		var x=document.getElementById("leftimage");
		x.src = "images/adverts/" + filename;
		tdname.style.backgroundColor = "#335ED5";
	}
	function check_valid(form) {
		var error = "";
		error += verify_firstname(form.firstname.value);
		error += verify_lastname(form.lastname.value);
		error += verify_email(form.email.value);
		error += verify_password(form.password.value);
		if (error != "") {
			alert(error);
			return false;
		}
		return true;
	}
	
	function loadhome(page)
	{
		var currentpage
		if (page != "") {
			currentpage = page
		}else{
			currentpage = "all"
		}
		var imgarr = ["lb_home"]
		var evtarr = ["Home"]
		var linkarr = ["index.php"]
		clearsubmenutable();
		insRow(currentpage, imgarr, evtarr,linkarr);
	}
	function loadevents(page)
	{
		var currentpage
		if (page != "") {
			currentpage = page
		}else{
			currentpage = "all"
		}
		var imgarr = ["lb_rotas","lb_activities","lb_services","lb_prayer","lb_thisweek"]
		var evtarr = ["Rotas","Activities","Services","Prayer","This Week"]
		var linkarr = ["rotas.php","activities.php","services.php","prayer.php","diary.php"]
		clearsubmenutable();
		insRow(currentpage, imgarr, evtarr,linkarr);
	}
	function loadteaching(page)
	{
		var currentpage
		if (page != "") {
			currentpage = page
		}else{
			currentpage = "all"
		}
		var imgarr = ["lb_sermons","lb_whatwebelieve","lb_overview"]
		var evtarr = ["Sermons","What we believe","Overview"]
		var linkarr = ["sermons.php","beliefs.php","Overview.php"]
		clearsubmenutable();
		insRow(currentpage, imgarr, evtarr,linkarr);
	}
	function loadmission(page)
	{
		var currentpage
		if (page != "") {
			currentpage = page
		}else{
			currentpage = "all"
		}
		var imgarr = ["lb_partners","lb_lifeshapes","lb_youth","lb_alpha"]
		var evtarr = ["Partners","Life Shapes","Youth","Alpha"]
		var linkarr = ["partners.php","lifeshapes.php","youth.php","alpha.php"]
		clearsubmenutable();		
		insRow(currentpage, imgarr, evtarr,linkarr);
	}
	function loadabout(page)
	{
		var currentpage
		if (page != "") {
			currentpage = page
		}else{
			currentpage = "all"
		}
		var imgarr = ["lb_community","lb_facilities","lb_building","lb_people","lb_news"]
		var evtarr = ["Community","Facilities","Building","People","News"]
		var linkarr = ["community.php","facilites.php","building.php","people.php","news.php"]
		clearsubmenutable();
		insRow(currentpage, imgarr, evtarr,linkarr);
	}
	function clearsubmenutable()
	{
		var x=document.getElementById('submenu');
		while(x.rows.length > 1)
			{x.deleteRow(x.rows.length -2);}
	}
	function insRow(currentpage, imgarr, arr, linkarr)
	{
		for (i=0;i<arr.length;i++)
		{
			var x=document.getElementById('submenu').insertRow(0);
			var y=x.insertCell(0);	
			if (currentpage == arr[i])
			{
				y.style.backgroundColor='#FFFF33';
				var str ="<a href='" + linkarr[i] + "'><img name='img_" + arr[i] + "' src='images/system/" + imgarr[i] + ".gif' alt='" + arr[i] + "' onmouseover=\"this.src='images/system/" + imgarr[i] + "_mouseover.gif'\" onmouseout=\"this.src='images/system/" + imgarr[i] + ".gif'\"></a>";
			}else{
				var str ="<a href='" + linkarr[i] + "'><img name='img_" + arr[i] + "' src='images/system/" + imgarr[i] + ".gif' alt='" + arr[i] + "' onmouseover=\"this.src='images/system/" + imgarr[i] + "_mouseover.gif'\" onmouseout=\"this.src='images/system/" + imgarr[i] + ".gif'\"></a>";	
			}
			y.innerHTML = str;
		}
	}