function g(sid){
	return document.getElementById(sid);
}
function MouseColorOver(trid){
    if (g(trid)) {
        g(trid).className = "menu_over";
    }
}

function MouseColorOut(trid){
    if (g(trid)) {
        g(trid).className = "menu_t";
    }
}
function checkNum(value,numType){
	if(!numType)var numType	='int';
	if(!value || !isNumber(value,numType)){
		alert('This must be a number!');
		return false;
	}else{
		return true;
	}
}
function isNumber(oNum,numType){
	if(!oNum) return false;
	if(!numType)var numType	='int';
	if(numType=='int')var strP=/^[-]{0,1}[0-9]{1,}$/;
	if(numType=='float')var strP=/^\d+(\.\d+)?$/;
	if(!strP.test(oNum)) return false;
	try{if(parseFloat(oNum)!=oNum) return false;}
	catch(ex){return false;}
	return true;
}

function initValue(obj,value){
	if(value=='')obj.value	=value;
	if(obj.value!=value && obj.value!=''){return;}else{obj.value	=value};
	
}
function initValue2(obj,value,intvalue){
	if(value=='' && obj.value==intvalue)obj.value	=value;
	if(obj.value!=value && obj.value!=''){return;}else{obj.value	=value};
	
}

//过滤空格键
function trim(inputString) {
   //xiao duan 22/06/2007
  if (typeof inputString != "string") { return inputString; }
  var retValue = inputString;
  var ch = retValue.substring(0, 1);
  while (ch == " ") {
//检查字符串开始部分的空格
	  retValue = retValue.substring(1, retValue.length);
	  ch = retValue.substring(0, 1);
  }
  ch = retValue.substring(retValue.length-1, retValue.length);
  while (ch == " ") {
	 //检查字符串结束部分的空格
	 retValue = retValue.substring(0, retValue.length-1);
	 ch = retValue.substring(retValue.length-1, retValue.length);
  }
  while (retValue.indexOf("  ") != -1) {
//将文字中间多个相连的空格变为一个空格
	 retValue = retValue.substring(0, retValue.indexOf("  ")) + retValue.substring(retValue.indexOf("  ")+1, retValue.length);
  }
  return retValue;
}


//过滤特殊字符
function CheckIfEnglish( String )
{
    var Letters = "(!@#$%^&*;':";
     var i;
     var c;
      if(String.charAt( 0 )=='-')
 return false;
      if( String.charAt( String.length - 1 ) == '-' )
          return false;
 for( i = 0; i < String.length; i ++ )
     {
          c = String.charAt( i );
   if (Letters.indexOf( c ) > 0)
    return false;       
     }
     return true;
}

////获取日期，时间
function getDateTime(){
	mydate=new Date();
	var mymonth=mydate.getMonth()+1;
	var myday= mydate.getDate();
	var myyear= mydate.getYear();
	var year=(myyear > 200) ? myyear : 1900 + myyear;
	var now = /..:..:../.exec(Date())[0];  
	var str	=year+'-'+mymonth+'-'+myday+' '+now;
	return str;
}

////获取国际标准时间
function getUTCTime(offset) {
	////offset为时区偏移值
	////例：中国getUTCTime('+8'),美国国getUTCTime('-5')；
	d = new Date();
	utc = d.getTime() + (d.getTimezoneOffset() * 60000);
	nd = new Date(utc + (3600000*offset));
	return nd.toLocaleString();
}