function hidedivED12(id) {
	//safe function to hide an element with a specified id
	
	
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(id).style.display = 'none';
	}
	else {
		if (document.layers) { // Netscape 4
			document.id.display = 'none';
		}
		else { // IE 4
			document.all.id.style.display = 'none';
		}
	}
}

function showdivED12(id) {
	//safe function to show an element with a specified id
		
		hidedivED12('ed1');
		hidedivED12('ed2');
		hidedivED12('ed3');
		hidedivED12('ed4');
		
	
		
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(id).style.display = 'block';
	}
	else {
		if (document.layers) { // Netscape 4
			document.id.display = 'block';
		}
		else { // IE 4
			document.all.id.style.display = 'block';
		}
	}
}





function hidedivED11(id) {
	//safe function to hide an element with a specified id
	
	
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(id).style.display = 'none';
	}
	else {
		if (document.layers) { // Netscape 4
			document.id.display = 'none';
		}
		else { // IE 4
			document.all.id.style.display = 'none';
		}
	}
}

function showdivED11(id) {
	//safe function to show an element with a specified id

		hidedivED11('ed5');
		hidedivED11('ed6');
		hidedivED11('ed7');
		hidedivED11('ed8');
		
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(id).style.display = 'block';
	}
	else {
		if (document.layers) { // Netscape 4
			document.id.display = 'block';
		}
		else { // IE 4
			document.all.id.style.display = 'block';
		}
	}
}





function hidedivKE30(id) {
	//safe function to hide an element with a specified id
	
	
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(id).style.display = 'none';
	}
	else {
		if (document.layers) { // Netscape 4
			document.id.display = 'none';
		}
		else { // IE 4
			document.all.id.style.display = 'none';
		}
	}
}

function showdivKE30(id) {
	//safe function to show an element with a specified id

		hidedivKE30('ke1');
		hidedivKE30('ke2');
		hidedivKE30('ke3');
		hidedivKE30('ke4');
		
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(id).style.display = 'block';
	}
	else {
		if (document.layers) { // Netscape 4
			document.id.display = 'block';
		}
		else { // IE 4
			document.all.id.style.display = 'block';
		}
	}
}



// FOR E10 headphone


function hidedive10(id) {
	//safe function to hide an element with a specified id
	
	
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(id).style.display = 'none';
	}
	else {
		if (document.layers) { // Netscape 4
			document.id.display = 'none';
		}
		else { // IE 4
			document.all.id.style.display = 'none';
		}
	}
}

function showdive10(id) {
	//safe function to show an element with a specified id

		hidedive10('e1');
		hidedive10('e2');
		hidedive10('e3');
		hidedive10('e4');
		
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(id).style.display = 'block';
	}
	else {
		if (document.layers) { // Netscape 4
			document.id.display = 'block';
		}
		else { // IE 4
			document.all.id.style.display = 'block';
		}
	}
}



// FOR EX headphone

function hidedivEX(id) {
	//safe function to hide an element with a specified id
	
	
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(id).style.display = 'none';
	}
	else {
		if (document.layers) { // Netscape 4
			document.id.display = 'none';
		}
		else { // IE 4
			document.all.id.style.display = 'none';
		}
	}
}








function showdivEX(id) {
	//safe function to show an element with a specified id

		hidedivEX('ex1');
		hidedivEX('ex2');
		hidedivEX('ex3');
		hidedivEX('ex4');
		
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(id).style.display = 'block';
	}
	else {
		if (document.layers) { // Netscape 4
			document.id.display = 'block';
		}
		else { // IE 4
			document.all.id.style.display = 'block';
		}
	}
}