function setValue( valPt, numId ){
	document.getElementById(numId).value = valPt;
}

function changePict( pictPath ) {
	document.getElementById('pict').innerHTML = '<a href="http://www.sandal-shop.com/forDrivers.php"><img src="' + pictPath + '" alt="安全足進" width="146" /></a>';
}

function disRadio( mode ) {

	document.getElementById('size_m').disabled = false;
	document.getElementById('size_w').disabled = false;
	document.getElementById('size_m').checked = true;

	if( mode == 'size_m' ){
		document.getElementById('size_m').disabled = true;
		document.getElementById('size_w').checked = true;
	}
	if( mode == 'size_w' ){
		document.getElementById('size_w').disabled = true;
	}
}

function changeSetVal( mode ){
	if( mode == 'black' ){
		document.getElementById('setVal_m').onclick = new Function("setValue('16','number_a');");
		document.getElementById('setVal_w').onclick = new Function("setValue('13','number_a');");
		document.getElementById('number_a').value = 16;
	}
	if( mode == 'beige' ){
		document.getElementById('setVal_m').onclick = new Function("setValue('14','number_a');");
		document.getElementById('setVal_w').onclick = new Function("setValue('11','number_a');");
		document.getElementById('number_a').value = 14;
	}
	if( mode == 'blue' ){
		document.getElementById('setVal_m').onclick = '';
		document.getElementById('number_a').value = 15;
	}
	if( mode == 'pink' ){
		document.getElementById('setVal_w').onclick = '';
		document.getElementById('number_a').value = 10;
	}
	if( mode == 'green' ){
		document.getElementById('setVal_w').onclick = '';
		document.getElementById('number_a').value = 12;
	}
}