$(function() {

	var chgImage = function(cover) {
		$('#eyeCatch').css('background-image','url(' + cover +')');
	}

	var sem = document.location.href;
	var decode = decodeURIComponent( document.referrer );
	
	// Adwards, Overture
	if( sem.indexOf("?referrer=Google&gclid=") > 1 || sem.indexOf("?OVRAW=") > 1 ){
	
		if( decode.indexOf("電子部品") > 1 ) chgImage('img/default/top/change_image/cover_1.jpg');
		if( decode.indexOf("通販") > 1 ) chgImage('img/default/top/change_image/cover_2.jpg');
		if( decode.indexOf("チップラス") > 1 ) chgImage('img/default/top/change_image/cover_3.jpg');
		if( decode.indexOf("Chiplus") > 1 ) chgImage('img/default/top/change_image/cover_3.jpg');
		if( decode.indexOf("SRAM") > 1 ) chgImage('img/default/top/change_image/cover_3.jpg');
		if( decode.indexOf("メモリー") > 1 ) chgImage('img/default/top/change_image/cover_3.jpg');

	}else{

		if( decode.indexOf("通販") > 1 ) chgImage('img/default/top/change_image/cover_2.jpg');
		if( decode.indexOf("販売") > 1 ) chgImage('img/default/top/change_image/cover_2.jpg');
		if( decode.indexOf("チップラス") > 1 ) chgImage('img/default/top/change_image/cover_3.jpg');
		if( decode.indexOf("Chiplus") > 1 ) chgImage('img/default/top/change_image/cover_3.jpg');
		if( decode.indexOf("SRAM") > 1 ) chgImage('img/default/top/change_image/cover_3.jpg');
		if( decode.indexOf("メモリー") > 1 ) chgImage('img/default/top/change_image/cover_3.jpg');

	}

});