function unv(imgname, imgdir, imgof) {
	if (navigator.appVersion > "3") {
		imgnum = new Image();
		dirclass = "";
		for (i = 0; i < imgdir; i++){
			dirclass += "../";
		}
		if( imgof == 0 ){
			imgnum.src = dirclass+"img/unv/img_"+imgname+".gif";
		}else if( imgof == 1 ){
			imgnum.src = dirclass+"img/unv/img_"+imgname+"_on.gif";
		}
		document.images[imgname].src = imgnum.src;
	}
}

function cch(imgname, imgdir, imgof) {
	if (navigator.appVersion > "3") {
		imgnum = new Image();
		dirclass = "";
		for (i = 0; i < imgdir; i++){
			dirclass += "../";
		}
		if( imgof == 0 ){
			imgnum.src = dirclass+"img/cmn/"+imgname+".gif";
		}else if( imgof == 1 ){
			imgnum.src = dirclass+"img/cmn/"+imgname+"_on.gif";
		}
		document.images[imgname].src = imgnum.src;
	}
}

function tcj(imgname, imgof) {
	if (navigator.appVersion > "3") {
		imgnum = new Image();
		if( imgof == 0 ){
			imgnum.src = "img/top/"+imgname+".jpg";
		}else if( imgof == 1 ){
			imgnum.src = "img/top/"+imgname+"_on.jpg";
		}
		document.images[imgname].src = imgnum.src;
	}
}

function icj(imgname, imgof) {
	if (navigator.appVersion > "3") {
		imgnum = new Image();
		if( imgof == 0 ){
			imgnum.src = "../img/ins/"+imgname+".jpg";
		}else if( imgof == 1 ){
			imgnum.src = "../img/ins/"+imgname+"_on.jpg";
		}
		document.images[imgname].src = imgnum.src;
	}
}

function tcg(imgname, imgof) {
	if (navigator.appVersion > "3") {
		imgnum = new Image();
		if( imgof == 0 ){
			imgnum.src = "img/top/"+imgname+".gif";
		}else if( imgof == 1 ){
			imgnum.src = "img/top/"+imgname+"_on.gif";
		}
		document.images[imgname].src = imgnum.src;
	}
}


function chgtype(id) {
	if (navigator.appVersion > "3") {
		if( id == 'mainph_A'){
			document.getElementById('mainph_A').className = 'viewon';
			document.getElementById('mainph_B').className = 'viewof';
			document.getElementById('mainph_C').className = 'viewof';
			document.getElementById('tpright_A').className = 'viewon';
			document.getElementById('tpright_B').className = 'viewof';
			document.getElementById('tpright_C').className = 'viewof';
		} else if ( id == 'mainph_B'){
			document.getElementById('mainph_A').className = 'viewof';
			document.getElementById('mainph_B').className = 'viewon';
			document.getElementById('mainph_C').className = 'viewof';
			document.getElementById('tpright_A').className = 'viewof';
			document.getElementById('tpright_B').className = 'viewon';
			document.getElementById('tpright_C').className = 'viewof';
		} else if ( id == 'mainph_C'){
			document.getElementById('mainph_A').className = 'viewof';
			document.getElementById('mainph_B').className = 'viewof';
			document.getElementById('mainph_C').className = 'viewon';
			document.getElementById('tpright_A').className = 'viewof';
			document.getElementById('tpright_B').className = 'viewof';
			document.getElementById('tpright_C').className = 'viewon';
		}
	}
}

function phchg(imgname, imgof) {
	if (navigator.appVersion > "3") {
		imgnum = new Image();
		document.images[imgname].src = "img/"+imgname+"_"+imgof+".jpg";
	}
}