function setBackground(src){
	$("body").prepend("<div id=\"flashcontent\"></div>");

	var so = new SWFObject("img/swf/background.swf","background","100%","100%","6","#000000");
	so.addParam('menu','false');
	so.addParam('scale','noscale');
	so.addParam('salign','lt');
	so.addParam('wmode','opaque');
	so.addVariable("src",src);//swf�֓n���ϐ�
	//so.write('flashcontent');
	if( so.write('flashcontent') )
	{
		var forcesize = new SWFForceSize( so, 980, 620 );
	}
}