var msg_invalid_ip = "Invalid IP, please enter again!\n";
function isIPaddr(addr) {
    var i;
    var a;
    if(addr.split) {	
        a = addr.split(".");
    }else {	
        a = cdisplit(addr,".");
    }
    if(a.length != 4) {
        return false;
    }
    for(i = 0; i<a.length; i++) {
        var x = a[i];
        if( x == null || x == "" || !isNumeric(x) || x<0 || x>255 ) {
            return false;
        }
    }
    return true;
}

function _isNumeric(str) {
    var i;
    for(i = 0; i<str.length; i++) {
        var c = str.substring(i, i+1);
        if("0" <= c && c <= "9") {
            continue;
        }
        return false;
    }
    return true;
}

function isHex(str) {
    var i;
    for(i = 0; i<str.length; i++) {
        var c = str.substring(i, i+1);
        if(("0" <= c && c <= "9") || ("a" <= c && c <= "f") || ("A" <= c && c <= "F")) {
            continue;
        }
        return false;
    }
    return true;
}

/* Just check if MAC address is all "F", or all "0" , with  ':' in it or not weal @ Aug 14*/ 
function MacStrallf(mac) {
	var temp=mac.value;

    for(i=0; i<mac.value.length;i++) {
        var c = mac.value.substring(i, i+1)
        if (c == "f" || c == "F" || c == "0" || c == ":") 
            continue;
		else
			break;
	}
	if (i == mac.value.length)
		return true;
	else
		return false;
}
function checkMacStr(mac) {
    if((mac.value.indexOf(':') != -1)||(mac.value.indexOf('-') != -1))
    {
        mac.value = mac.value.replace(/:/g,"");
        mac.value = mac.value.replace(/-/g,"");
    }
	var temp=mac.value;
    if(mac.value.length != 12) {
        mac.focus();
        return true;
    }
    for(i=0; i<mac.value.length;i++) {
        var c = mac.value.substring(i, i+1)
        if(("0" <= c && c <= "9") || ("a" <= c && c <= "f") || ("A" <= c && c <= "F")) {
            continue;
        }
        
        mac.focus();
        return true;
    }

    mac.value = temp.toUpperCase();
    return false;
}
/* Check Mac Address Format*/
function checkMacMain(mac) {
    if(mac.value.length == 0) {
        mac.focus();
        return true;
    }
    for(i=0; i<mac.value.length;i++) {
        var c = mac.value.substring(i, i+1)
        if(("0" <= c && c <= "9") || ("a" <= c && c <= "f") || ("A" <= c && c <= "F")) {
            continue;
        }
        mac.focus();
        return true;
    }
    if(mac.value.length == 1) {
        mac.value = "0"+mac.value;
    }
    mac.value = mac.value.toUpperCase();
    return false;
}
function checkMacAddress(mac1, mac2, mac3, mac4, mac5, mac6) {
    if(checkMacMain(mac1)) return true;
    if(checkMacMain(mac2)) return true;
    if(checkMacMain(mac3)) return true;
    if(checkMacMain(mac4)) return true;
    if(checkMacMain(mac5)) return true;
    if(checkMacMain(mac6)) return true;
    return false;
}

/* Check IP Address Format*/
function checkIPMain(ip,max) {
    if( isNumeric(ip, max) ) {
        ip.focus();
        return true;
    }
}

function checkIP(ip1, ip2, ip3, ip4,max) {
    if(checkIPMain(ip1,255)) return true; 
    if(checkIPMain(ip2,255)) return true;
    if(checkIPMain(ip3,255)) return true;
    if(checkIPMain(ip4,max)) return true;
    if((ip1.value.charAt(0)=="0" && ip1.value.length!=1) ||
       (ip2.value.charAt(0)=="0" && ip2.value.length!=1) ||
       (ip3.value.charAt(0)=="0" && ip3.value.length!=1) ||
       (ip4.value.charAt(0)=="0" && ip4.value.length!=1)) 
        return true; 
    if((parseInt(ip1.value)==0)||
    (parseInt(ip1.value)==0)&&(parseInt(ip2.value)==0)&&(parseInt(ip3.value)==0)&&(parseInt(ip4.value)==0))
    	return true;
    return false;
}

/* Check Numeric*/
function isNumeric(str, max) {
    if(str.value.length == 0 || str.value == null || str.value == "") {
        str.focus();
        return true;
    }
    
    var i = parseInt(str.value);
    if(i>max) {
        str.focus();
        return true;
    }
    for(i=0; i<str.value.length; i++) {
        var c = str.value.substring(i, i+1);
        if("0" <= c && c <= "9") {
            continue;
        }
        str.focus();
        return true;
    }
    return false;
}

/* Check Blank*/
function isBlank(str) {
    if(str.value == "") {
        str.focus();
        return true;
    } else 
        return false;
}

/* Check Phone Number*/
function isPhonenum(str) {
    var i;
    if(str.value.length == 0) {
        str.focus();
        return true;
    }
    for (i = 0; i<str.value.length; i++) {
        var c = str.value.substring(i, i+1);
        if (c>= "0" && c <= "9")
            continue;
        if ( c == '-' && i !=0 && i != (str.value.length-1) )
            continue;
        if ( c == ',' ) continue;
        if (c == ' ') continue;
        if (c>= 'A' && c <= 'Z') continue;
        if (c>= 'a' && c <= 'z') continue;
        str.focus();
        return true;
    }
    return false;
}

/* 0:close 1:open*/
function openHelpWindow(filename) {
    helpWindow = window.open(filename,"thewindow","width=300,height=400,scrollbars=yes,resizable=yes,menubar=no");
}

function checkSave() {
    answer = confirm("Did you save this page?");
    if (answer !=0) {
        return true;
    } else return false;
}

function alertPassword(formObj) {
    alert("Re-Confirm the password!");
    formObj.focus();
}
function isEqual(cp1,cp2)
{
	if(parseInt(cp1.value) == parseInt(cp2.value))
	{
		cp2.focus();
		return true;
	}	
	else return false;
}
function setDisabled(OnOffFlag,formFields)
{
	for (var i = 1; i < setDisabled.arguments.length; i++)
		setDisabled.arguments[i].disabled = OnOffFlag;
}

function cp_ip(from1,from2,from3,from4,to1,to2,to3,to4)
//true invalid from and to ip;  false valid from and to ip;
{
    var total1 = 0;
    var total2 = 0;
    
    total1 += parseInt(from4.value);
    total1 += parseInt(from3.value)*256;
    total1 += parseInt(from2.value)*256*256;
    total1 += parseInt(from1.value)*256*256*256;
    
    total2 += parseInt(to4.value);
    total2 += parseInt(to3.value)*256;
    total2 += parseInt(to2.value)*256*256;
    total2 += parseInt(to1.value)*256*256*256;
    if(total1 > total2)
        return true;
    return false;
}
function pi(val)
{
    return parseInt(val,10);
}    
function alertR(str)    
{
    alert(str);
    return false;
}