last_tab = 'tab1';
function show(layerName) {
	for(i=1;i<=9;i++){
		hide("tab"+i+"_data");
	}
document.getElementById(layerName).style.display = '';
if(layerName=="tab2_data"){
	document.getElementById('cw').style.height="635px";
}
else if(layerName=="tab3_data"){
	document.getElementById('cw').style.height="595px";
}
else if(layerName=="tab4_data"){
	document.getElementById('cw').style.height="715px";
}
else if(layerName=="tab5_data"){
	document.getElementById('cw').style.height="640px";
}
else if(layerName=="tab6_data"){
	document.getElementById('cw').style.height="585px";
}

else{
	document.getElementById('cw').style.height="530px";
}
}

function show1(layerName){	
	document.getElementById(layerName).style.display = '';
	if(layerName=="tab1_data"){
	document.getElementById('cw1').style.height="845px";
}
else if(layerName=="tab2_data"){
	document.getElementById('cw1').style.height="1015px";
}
else if(layerName=="tab3_data"){
	document.getElementById('cw1').style.height="905px";
}
else if(layerName=="tab4_data"){
	document.getElementById('cw1').style.height="925px";
}
else if(layerName=="tab5_data"){
	document.getElementById('cw1').style.height="925px";
}

else{
	document.getElementById('cw1').style.height="915px";
}
}

function hide(layerName) {
document.getElementById(layerName).style.display = 'none';
}
function show_next(tab_name) {
for(i=1;i<=9;i++){
	document.getElementById("tab"+i).className="tab";
}
	document.getElementById(last_tab).className = 'tab';
	var curr = document.getElementById(tab_name);
	curr.className='tab_hover';
	
hide(last_tab+'_data');
show(tab_name+'_data');
last_tab=tab_name;
}

function show_next1(tab_name) {
for(i=1;i<=5;i++){
	document.getElementById("tab"+i).className="tab";
}
	document.getElementById(last_tab).className = 'tab';
	var curr = document.getElementById(tab_name);
	curr.className='tab_hover';
	
hide(last_tab+'_data');
show1(tab_name+'_data');
last_tab=tab_name;
}

function samp(){
var query = self.location.href;

	for(var i=1;i<=9;i++){
		if((query=="http://kschools.net/modules.html#tab"+i+"_data") || (query=="http://www.kschools.net/modules.html#tab"+i+"_data")){
			if((query=="http://kschools.net/modules.html#tab1_data") || (query=="http://www.kschools.net/modules.html#tab1_data")){
				document.getElementById('tab1_data').style.display="";
				document.getElementById('tab1').className="tab_hover";
				document.getElementById('cw').style.height="";
			}
			else{
				document.getElementById('tab1').className="tab";
				document.getElementById('tab1_data').style.display="none";
				document.getElementById('tab'+i+'_data').style.display="";
				document.getElementById('tab'+i).className="tab_hover";
				switch(query){
					case "http://kschools.net/modules.html#tab2_data":
					document.getElementById('cw').style.height="635px";break;
					case "http://www.kschools.net/modules.html#tab2_data":
					document.getElementById('cw').style.height="635px";break;
					case "http://kschools.net/modules.html#tab3_data":
					document.getElementById('cw').style.height="595px";break;
					case "http://www.kschools.net/modules.html#tab3_data":
					document.getElementById('cw').style.height="595px";break;
					case "http://kschools.net/modules.html#tab5_data":
					document.getElementById('cw').style.height="640px";break;
					case "http://www.kschools.net/modules.html#tab5_data":
					document.getElementById('cw').style.height="640px";break;
					case "http://kschools.net/modules.html#tab6_data":
					document.getElementById('cw').style.height="585px";break;
					case "http://www.kschools.net/modules.html#tab6_data":
					document.getElementById('cw').style.height="585px";break;
					default:document.getElementById('cw').style.height="545px";break;
				}
			}
		}
	}
}