function ran_swf(){
	var r_swf = new Array ();
	r_swf[0] = "swf/banner.swf";
	r_swf[1] = "swf/banner1.swf";
	r_swf[2] = "swf/banner2.swf";
    r_swf[3] = "swf/banner3.swf";
    r_swf[4] = "swf/banner4.swf";
	
	var i = Math.round(4*Math.random());
	
	document.write("<object classid='clsid:D27CDB6E-AE6D-11cf-96B8-444553540000' codebase='http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,28,0' width='750' height='185'>");
	document.write("<param name='movie' value='"+ r_swf[i] +"'>");
	document.write("<param name='wmode' value='transparent'>");
	document.write("<param name='quality' value='high'>");
	document.write("<param name='menu' value='false'>");
	document.write("<param name='allowscale' value='false'>");
	document.write("<embed src='"+ r_swf[i] +"' width='750' height='185' quality='high' pluginspage='http://www.adobe.com/shockwave/download/download.cgi?P1_Prod_Version=ShockwaveFlash' type='application/x-shockwave-flash' menu='false' allowscale='false'></embed></object>");
}