if (checkB.Opera) {
	var sp = navigator.plugins["Shockwave Flash"].description.indexOf("Flash");
	var ep = navigator.plugins["Shockwave Flash"].description.lastIndexOf(" ");
	var aver = parseFloat(navigator.plugins["Shockwave Flash"].description.substring((sp+6),ep));
	// alert("opera aver: "+aver+" , flash_version: "+flash_version);
	if(aver >= flash_version){
	var FlashInstalled = true;
	}
}else if(checkB.Win && checkB.IE){
	document.write('<SCR' + 'IPT LANGUAGE=VBScript\> \n');
	document.write('on error resume next \n');
	document.write('contentVersion = 5 \n');
	document.write('FlashInstalled = ( IsObject(CreateObject("ShockwaveFlash.ShockwaveFlash." & contentVersion))) \n');
	document.write('</SCR' + 'IPT\> \n');
	// alert("win ie checkB.IE4: "+checkB.IE4);
	if(checkB.IE4){
		var FlashInstalled = false;
	}
		
}else if(checkB.Mac && checkB.IE){
	if(!checkB.IE4 && navigator.plugins["Shockwave Flash"]){
		var sp = navigator.plugins["Shockwave Flash"].description.indexOf("Flash");
		var ep = navigator.plugins["Shockwave Flash"].description.lastIndexOf(" ");
		var aver = parseFloat(navigator.plugins["Shockwave Flash"].description.substring((sp+6),ep));
		// alert("mac ie aver: "+aver+" , flash_version: "+flash_version);
		if(aver >= flash_version){
			var FlashInstalled = true;
		}
	}				
}else if(checkB.NN && navigator.plugins["Shockwave Flash"]){
		var sp = navigator.plugins["Shockwave Flash"].description.indexOf("Flash");
		var ep = navigator.plugins["Shockwave Flash"].description.lastIndexOf(" ");
		var aver = parseFloat(navigator.plugins["Shockwave Flash"].description.substring((sp+6),ep));
		// alert("check NN\nsp"+sp+"\nep"+ep+"\naver: "+aver+" , flash_version: "+flash_version);
		if(aver >= flash_version){
			var FlashInstalled = true;
		}
}