function BrowserInfo()
{
//IE5 return 2
//IE6 return 5
	var csAppName = String(navigator.appName);
	var csAppVer = String(navigator.appVersion);
	var csPlatform = String(navigator.platform);
	var csUserAgent = String(navigator.userAgent);
	var csVendor = String(navigator.vendor);
	if(csUserAgent.indexOf("Opera") > -1)
		return 0;
	else if(csUserAgent.indexOf("MSIE 4") > -1 && csPlatform != "MacPPC")
		return 1;
	else if(csUserAgent.indexOf("MSIE 5") > -1)
		return 2;
	else if(csUserAgent.indexOf("MSIE 6") > -1)
		return 5;
	else if(csAppName == "Netscape")
	{
		if(csVendor == "Netscape6")
			return 4;
		else if(parseFloat(csAppVer) >= 4 && parseFloat(csAppVer) < 5)
			return 3;
		else
			return 0;
	}
	else
		return 0;
}


function shutwin(){
//var BrowserType=BrowserInfo();
//if(BrowserType==2){
//	closes.Click();
//}else{
	window.close();
//}
return;
}

//title: 	endsWidth 
//desc:		判断字符串text是否以字符串tail结束
//param:	text 	母字符串
//param:	tail	尾字符串
//return:	如果母字符串以尾字符串结尾，返回true；否则范围false
function endWith(text, tail) {
	if(	text == null || 
		tail == null || 
		text.length < tail.length) {
		
		return null;
	}
	
	if(text.substring(text.length - tail.length) == tail)
		return true;
	else
		return false;
}

//title: 	startWidth
//desc:		判断字符串text是否以字符串head开始
//param:	text 	母字符串
//param:	tail	尾字符串
//return:	如果母字符串以尾字符串结尾，返回true；否则范围false
function startWith(text, head) {
	
	if(text == null || head == null) return false;
	
	if(text.length < head.length) return false;
	
	if(text.indexOf(head) == 0)
		return true;
	else
		return false;
}

//title:	cutTail
//desc:		截去字符串text后的子串tail，
//			如果text中有tail则截去，没有则返回text
//param:	text
//param:	tail
//return:	被截去子串tail的text
function cutTail(text, tail) {
	if(	text == null || tail == null) {
		return null;
	}
	else {
		text = trim(text);
		tail = trim(tail);
		if(text.length < tail.length) {
			return null;
		}
	}
	
	if(text.substring(text.length - tail.length) == tail)
		text = text.substring(0, text.length - tail.length);
	
	return text;
}

//title:	getCount
//desc:		获得一个字符串中某个单词的存在个数
function getCount(text, substr) {
	var count = 0;
	var index = 0;
	
	if(	text == null || substr == null || text == "") 
		return 0;
	
	while((index = text.indexOf(substr, index)) > -1) {		
		count ++;
		index += substr.length;
	}
	
	return count;
}