//This script is used by Important Events page

// delcare variables
var history_tabs_on = new Array();
var history_tabs_off = new Array();
var history_tabs_onoff = new Array(true,false,false,false);
var history_divnames = new Array('tabEventContents1','tabEventContents2','tabEventContents3','tabEventContents4');

// set image filenames 
history_tabs_off[0] = '/view/images/section/importantEvents/ekb_timeline_off_01.jpg';
history_tabs_off[1] = '/view/images/section/importantEvents/ekb_timeline_off_02.jpg';
history_tabs_off[2] = '/view/images/section/importantEvents/ekb_timeline_off_03.jpg';
history_tabs_off[3] = '/view/images/section/importantEvents/ekb_timeline_off_04.jpg';

history_tabs_on[0] = '/view/images/section/importantEvents/ekb_timeline_on_01.jpg';
history_tabs_on[1] = '/view/images/section/importantEvents/ekb_timeline_on_02.jpg';
history_tabs_on[2] = '/view/images/section/importantEvents/ekb_timeline_on_03.jpg';
history_tabs_on[3] = '/view/images/section/importantEvents/ekb_timeline_on_04.jpg';


arrNodes = new Array(1);
						
arrNodes[0] = "1783";
arrNodes[1] = "1796";
arrNodes[2] = "1861";
arrNodes[3] = "1869";
arrNodes[4] = "1923";
arrNodes[5] = "1932";
arrNodes[6] = "1942";
arrNodes[7] = "1961";
arrNodes[8] = "1971";
arrNodes[9] = "1973";
arrNodes[10] = "1981";
arrNodes[11] = "1993";
arrNodes[12] = "1999";
arrNodes[13] = "2000";
arrNodes[14] = "2001";
arrNodes[15] = "2002";
arrNodes[16] = "2003";
arrNodes[17] = "2004";
arrNodes[18] = "2005";
arrNodes[19] = "2006";


// preload Images
var history_tabs_on_preload = new Array();
for (var i = 0; i < history_tabs_off.length; i++) {
	history_tabs_on_preload[i] = new Image();
	history_tabs_on_preload.src = history_tabs_on[i];
}

// function to show tab contents
function ShowHistoryTab(tab,divName) {
	document.getElementById(divName).style.display = "block";
	for (var i=0; i < history_divnames.length; i++) {
		if (history_divnames[i] != divName) document.getElementById(history_divnames[i]).style.display = "none";
	}
	if (tab == "tab1") { 
		document.tab1.src=history_tabs_on[0];
		document.tab2.src=history_tabs_off[1];
		document.tab3.src=history_tabs_off[2];
		document.tab4.src=history_tabs_off[3];
		history_tabs_onoff[0] = true;
		history_tabs_onoff[1] = false;
		history_tabs_onoff[2] = false;
		history_tabs_onoff[3] = false;
		document.getElementById("content" + 1783).style.display = "block";
		document.getElementById("link" + 1783).style.fontWeight = "bold";
	}
	else if (tab == "tab2") { 
		document.tab1.src=history_tabs_off[0];
		document.tab2.src=history_tabs_on[1];
		document.tab3.src=history_tabs_off[2];
		document.tab4.src=history_tabs_off[3];
		history_tabs_onoff[0] = false;
		history_tabs_onoff[1] = true;
		history_tabs_onoff[2] = false;
		history_tabs_onoff[3] = false;
		document.getElementById("content" + 1923).style.display = "block";
		document.getElementById("link" + 1923).style.fontWeight = "bold";
	}
	else if (tab == "tab3") { 
		document.tab1.src=history_tabs_off[0];
		document.tab2.src=history_tabs_off[1];
		document.tab3.src=history_tabs_on[2];
		document.tab4.src=history_tabs_off[3];
		history_tabs_onoff[0] = false;
		history_tabs_onoff[1] = false;
		history_tabs_onoff[2] = true;
		history_tabs_onoff[3] = false;
		document.getElementById("content" + 1961).style.display = "block";
		document.getElementById("link" + 1961).style.fontWeight = "bold";
	}
	else if (tab == "tab4") { 
		document.tab1.src=history_tabs_off[0];
		document.tab2.src=history_tabs_off[1];
		document.tab3.src=history_tabs_off[2];
		document.tab4.src=history_tabs_on[3];
		history_tabs_onoff[0] = false;
		history_tabs_onoff[1] = false;
		history_tabs_onoff[2] = false;
		history_tabs_onoff[3] = true;
		document.getElementById("content" + 2001).style.display = "block";
		document.getElementById("link" + 2001).style.fontWeight = "bold";
	}
}



function swapContent(id) {
	for(var i = 0; i < arrNodes.length; i++) {
	//document.getElementById("image" + arrNodes[i]).style.display = "none";
	document.getElementById("content" + arrNodes[i]).style.display = "none";
	}
						
	//document.getElementById("image" + id).style.display = "block";
	document.getElementById("content" + id).style.display = "block";

	// set initially bolded back to normal.
	document.getElementById("link" + 1783).style.fontWeight = "normal";
	document.getElementById("link" + 1923).style.fontWeight = "normal";
	document.getElementById("link" + 1961).style.fontWeight = "normal";
	document.getElementById("link" + 2001).style.fontWeight = "normal";

}