Mlritz クロスドメインパラメータ引き継ぎ

add_xparam.js

(function(g){
	var KEYNAME    = 'yclid';
	var TARGET_URL = 'https://www.mlritz.com/shop.php';
	if( 'KEYNAME' in g ){
		KEYNAME = g.KEYNAME;
	}
	if( 'TARGET_URL' in g ){
		TARGET_URL = g.TARGET_URL;
	}

	var params = (function(query){
		if( !query || query.length < 1 ) return null;
		var params = query.split('&');
		var result = {};
		for( var i = 0,len = params.length;i < len;i++){
			var elem = params[i].split('=');
			var key  = decodeURIComponent(elem[0]);
			var val  = decodeURIComponent(elem[1]);
			result[key] = val;
		}
		return result;
	})(location.search.substring(1));
	if( KEYNAME in params ){
		g.addEventListener('DOMContentLoaded', function(){
			var forms = g.document.querySelectorAll('form');
			for( var i = 0,len = forms.length;i < len;i++ ){
				var form = forms[i];
				var url = form.getAttribute('action');
				if( url.indexOf(TARGET_URL) >= 0 ){
					var sep = '?';
					if( url.indexOf('?') >= 0 ){
						sep = '&';
					}
					form.setAttribute('action',url+=sep+KEYNAME+'='+params[KEYNAME]);
				}
			}
		});
	}
})(this)