/**
 * ������ͨ��js
 * author: xiaohong.liu
 * date: 2008-9-11
 */
 
var validregexp= /[<>%#^&~]/;

/**
 * ��֤һ��ֵ�ƿ�ϊ����
 * @param value��ֵ
 */
function checknumber(value)
{
    var renumber = /^[0-9]+.?[0-9]*$/;
    if (!renumber.test(value))
    {
        return false;
    }
    return true;
}

/**
 * ��֤һ��ֵ�ƿ�ϊ����
 * @param value��ֵ
 */
function checkinteger(value)
{
    var renumber = /^[-]{0,1}[0-9]{1,}$/;
    if (!renumber.test(value))
    {
        return false;
    }
    return true;
}

/**
 * ���ؽ������ڣ���ʽ�磺2008-8-8
 */
function gettodaydate(){
    var today=new date();
    var year=today.getfullyear();
    var month=today.getmonth()+1;
    var day=today.getdate();
    return year+"-"+month+"-"+day;
}

/**
 * ������ʼ���ں���ֹ���ڻ�ü������
 * @param startdate  ��ʼ���ڣ���ʽ��:2008-8-8
 * @param enddate    ��ֹ���ڣ���ʽ�磺2008-8-8
 * @return ���������ʧ�ܷ���0
 */
function getintervaldays(startdate,enddate){
    try{
    /*
        var arrstartday=startdate.split("-");
        var arrendday=enddate.split("-");
        if(!checkinteger(arrstartday[0])||!checkinteger(arrstartday[1])||!checkinteger(arrstartday[2])){
            throw "e";
        }
        if(!checkinteger(arrendday[0])||!checkinteger(arrendday[1])||!checkinteger(arrendday[2])){
            throw "e";
        }
        if(arrstartday[0].length!=4||arrstartday[0]<1000||arrstartday[1]<1||arrstartday[1]>12||arrstartday[2]<1||arrstartday[2]>31){throw "e"};
        if(arrendday[0].length!=4||arrendday[0]<1000||arrendday[1]<1||arrendday[1]>12||arrendday[2]<1||arrendday[2]>31){throw "e"};
        var interval=(new date(arrendday[0],arrendday[1],arrendday[2]).gettime()-new date(arrstartday[0],arrstartday[1],arrstartday[2]).gettime())/(1000*60*60*24);
        interval=parseint(interval);
        return interval;
    */


var starttime = new date(date.parse(startdate.replace(/-/g, "/"))).gettime(); 
var endtime = new date(date.parse(enddate.replace(/-/g, "/"))).gettime(); 
var dates = math.abs((starttime - endtime))/(1000*60*60*24); 
return dates; 


    }catch(e){
        return 0;
    }
}

/**
 * ��������
 * @param startdate ��ʽ��2008-8-8
 * @param num ����
 */
function addyears(startdate,num){
    var arrstartday=startdate.split("-");
    arrstartday[0]=parseint(arrstartday[0])+num;
    document.getelementbyid("saving_enddate").value =arrstartday[0]+"-"+arrstartday[1]+"-"+arrstartday[2];
}

/**
 * ��������
 * @param startdate ��ʽ��2008-8-8
 * @param num ����
 */
function addmonths(startdate,num){
    var arrstartday=startdate.split("-");
    arrstartday[0]=parseint(arrstartday[0]);
    arrstartday[1]=parseint(arrstartday[1]);
    if((arrstartday[1]+num)>12){
        arrstartday[0]=arrstartday[0]+1;
        arrstartday[1]=(arrstartday[1]+num)-12;
    }else{
        arrstartday[1]=arrstartday[1]+num;
    }
    document.getelementbyid("saving_enddate").value =arrstartday[0]+"-"+arrstartday[1]+"-"+arrstartday[2];
}
/**
 * ��������
 * @param startdate ��ʽ��2008-8-8
 * @param num ����
 */
function adddays(startdate,num){
    var arrstartday=startdate.split("-");
    arrstartday[0]=parseint(arrstartday[0]);
    arrstartday[1]=parseint(arrstartday[1]);
    arrstartday[2]=parseint(arrstartday[2]);
    var monthdaysnum=30;
    //1,3,5,7,8,10,12 ����31��
    if(arrstartday[1]==1||arrstartday[1]==3||arrstartday[1]==5||arrstartday[1]==7||arrstartday[1]==8||arrstartday[1]==10||arrstartday[1]==12){
        monthdaysnum=31;
    }else if(arrstartday[1]==2){
        if(0==arrstartday[0]%4&&((arrstartday[0]%100!=0)||(arrstartday[0]%400==0))){
            monthdaysnum=29;//����29��
        }else{
            monthdaysnum=28;//ƽ��28��
        }
    }else{
        monthdaysnum=30;
    }
    if((arrstartday[2]+num)>monthdaysnum){
        arrstartday[2]=arrstartday[2]+num-monthdaysnum;
            if((arrstartday[1]+1)>12){
                arrstartday[0]=arrstartday[0]+1;
                arrstartday[1]=(arrstartday[1]+1)-12;
            }else{
                arrstartday[1]=arrstartday[1]+1;
            }

    }else{
        arrstartday[2]=arrstartday[2]+num;
    }
    document.getelementbyid("saving_enddate").value =arrstartday[0]+"-"+arrstartday[1]+"-"+arrstartday[2];
}

/**
 * ȡс�������λ����������
 * @param value������
 * @return ��������������
 */
function getround(value)
{
    return math.round((math.floor(value*1000)/10))/100;
}

/**
 *ȥǰ��ո�
 */
string.prototype.trim = function()  {return this.replace(/(^\s*)|(\s*$)/g,"");} 


/**
 * у���ַ������ƿ�����ƿ��ַ�
 * @ parm string 
 * @ since 1.0
 */
function checklegalchar(string){
	var isvalid=validregexp.test(string); 
	if (isvalid){
		alert("�������ֵ\""+ string +"\"�����ƿ��ַ�(<,>,%,#,^,&,~)��");	
		return true; 
	} 
	else{
		return false; 
	}
}

/**
 * у�����е���������ؼ����ƿ��зƿ��ַ�
 * �����������,ĭ���� forms[0]
 */
function checklegaltextinform(formname){
	var formobj;
	if (formname == null || formname == "") {
		formobj = document.forms[0];  
	} else {
		formobj = document.forms[formname]; 
	} 
	var formele = formobj.elements;    
	for (var i=0; i<formele.length; i++)     {  
		var element = formele[i];         
		if (element.type == "text") { 
			if(element.readonly==true){
				continue;
			}else if(checklegalchar(element.value)){
				//alert("�������ֵ\""+ element.value +"\"�����ƿ��ַ�(<,>,#,^,&,~)��");
				return true;
			}
		}         
		if (element.type == "textarea") { 
			if(element.readonly==true){
			continue;
		}else if(checklegalchar(element.value)){
			//alert("�������ֵ\""+ element.value +"\"�����ƿ��ַ�(<,>,#,^,&,~)��");
			return true;
		}
		}         
	} 
}

/**
 * у��绰�����ʽ�ƿ���ȷ
 * ���¸�ʽ�ĵ绰��������
 * ����-�绰��(����)�绰�����ŵ绰���绰���ֻ��ţ�0�ֻ���
 * ���у������dz�����0��ͷ������λ������λ���ֵĺ���
 * �绰��3��8λ���ֵĺ���
 * �ֻ����dz�����13����15��ͷ����11λ���ֵĺ���
 * @ parm string 
 * @ since 1.0
 */
function checklegaltel(string){
	/*var validregexp=/^((\(\d{3}\))|(\d{3}\-))?(\(0\d{2,3}\)|0\d{2,3}-)?[1-9]\d{6,7}$/;*/
	var validregexp=/(^0[0-9]{2,3}\-?[0-9]{3,8}$)|(^[0-9]{3,8}$)|(^\(0[0-9]{2,3}\)[0-9]{3,8}$)|(^0{0,1}13[0-9]{9}$)|(^0{0,1}15[0-9]{9}$)/;
	var isvalid=validregexp.test(string); 
	if (isvalid){
		return true; 
	} else {
		return false; 
	}
}




/**
 * ���form���(��������ո�ѡ�򣬵�ѡť)
 * �����������,ĭ�����forms[0]
 * @ parm string 
 */
function clearform(formname) {
   var formobj;
   if (formname == null || formname == "") {
   	 formobj = document.forms[0];  
   } else {
   	 formobj = document.forms[formname]; 
   }  
   var formele = formobj.elements;    
   for (var i=0; i<formele.length; i++)     {  
	 var element = formele[i];         
	 if (element.type == "submit") { continue; }      
	 if (element.type == "reset") { continue; }         
	 if (element.type == "button") { continue; }         
	 if (element.type == "hidden") { continue; } 
	 if (element.type == "checkbox") { continue; }         
	 if (element.type == "radio") { continue; }
	 if (element.type == "text") { element.value = ""; }         
	 if (element.type == "textarea") { element.value = ""; }         
	 if (element.type == "select-multiple") { element.selectedindex = ""; }         
	 if (element.type == "select-one") { element.selectedindex = ""; }   
	   
   }  
}
/**
 * ���form���(������ո�ѡ�򣬵�ѡť)
 * �����������,ĭ�����forms[0]
 * @ parm string 
 */
function clearform2(formname) {   
   var formobj;
   if (formname == null || formname == "") {
   	 formobj = document.forms[0];  
   } else {
   	 formobj = document.forms[formname]; 
   }  
   var formele = formobj.elements;    
   for (var i=0; i<formele.length; i++)     {  
	 var element = formele[i];         
	 if (element.type == "submit") { continue; }      
	 if (element.type == "reset") { continue; }         
	 if (element.type == "button") { continue; }         
	 if (element.type == "hidden") { continue; } 
	 if (element.type == "checkbox") { element.checked = false; }         
	 if (element.type == "radio") { element.checked = false; }
	 if (element.type == "text") { element.value = ""; }         
	 if (element.type == "textarea") { element.value = ""; }         
	 if (element.type == "select-multiple") { element.selectedindex = -1; }         
	 if (element.type == "select-one") { element.selectedindex = -1; }   
	   
   }  
}
/**
 * ��ʽ��float���ͣ�����с�������λ
 * @param {object} src
 * @param {object} pos
 */
function formatfloat(src, pos){
    return math.round(src*math.pow(10, pos))/math.pow(10, pos);
}