function alltrim(strLine)
{	var trimstr = "";
	trimstr = rtrim(ltrim(strLine));
	return trimstr;
}

function ltrim(strLine)
{
	var trimstr = "";
	var blkflg = 0;
	var len    = strLine.length;
	for (var i=0; i<=len-1; i++)
	{if(strLine.charAt(i) != " " )
		{{
				trimstr= strLine.substring(i,len);
				blkflg = 1;
				break ;}}}
	return trimstr;
}

function rtrim(strLine)
{
	var trimstr = "";
	var blkflg = 0;
	var len    = strLine.length-1;
	var i = len;
	while (strLine.charAt(i) == " ") {i=i-1 ;}
	trimstr = strLine.substring(0,i+1);
	return trimstr;
}

function isBlank(objfld)
{
	if(alltrim(objfld.value)==""){
		//objfld.focus()
		return true;
	}
	else{
		return false;}
}

function isPositive(strLineval)
{
	var strLine1 = ltrim(rtrim(strLineval));
	if (isNumeric(strLine1)) {
	   return(strLine1>0?true:false);
	}
	else {
	    return false;
	}
}

function isNegative(objfldval)
{
   if (isNumeric(objfldval))
   {
      return(objfldval<0?true:false);
   }
   else
   {
	   return false;
   }
}

function isInteger(objfldval)
{
    if (isNumeric(objfldval)) {
		return (objfldval.indexOf(".")>=0?false:true);
		}
	else
	{
	return false;
	}
}

function isNumeric(objfldval)
{
   return (isNaN(objfldval)?false:true);
}

function isReal(strLineval)
{
    if (isNumeric(strLineval)) {
		return (strLineval.indexOf(".")<0?false:true);
		}
	else
	{return false;
	}
}

function contains(strLine,strLine2)
{
	return (strLine.indexOf(strLine2)>=0?true:false);
}

function upper(strLine)
{
	return (strLine.toUpperCase());
}

function lower(strLine)
{
	return (strLine.toLowerCase());
}
function isEmail(strObject)
{
	EStr = strObject.value;

	EArray = EStr.split(",");
	for (var i = 0; i < EArray.length; i++)
	{
		if(EArray[i].indexOf("@")==-1 || EArray[i].indexOf(".")== -1)
			{
				strObject.focus();
				return false;
			}
	}
	return true;
}

function isPositiveInteger(strLineval)
{
	var strLine1 = ltrim(rtrim(strLineval));
	if (isInteger(strLine1))
	{
	   if(strLine1>0)
	   {
		return true;
	   }
	   else
	   {
		alert("Please enter positive integers only");
		return false;
	   }
	}
	else
	{
	    alert("Please enter positive integers only");
	    return false;
	}
}

function isPositiveFloat(strLineval)
{
	var strLine1 = ltrim(rtrim(strLineval));
	if (isReal(strLine1) || isInteger(strLine1))
	{
	   if(strLine1>0)
	   {
		return true;
	   }
	   else
	   {
		alert("Please enter positive numbers only");
		return false;
	   }
	}
	else
	{
	    alert("Please enter positive numbers only");
	    return false
	}
}

function isSpChar(fName){
var i=0;var count=-1;var fValue=fName.value;var flen=fName.value.length;

	if( contains(fName.name,"GROSSWEIGHT") || contains(fName.name,"VOLUME") )
	{
		var spchar=new Array("!","@","#","$","%","^","&","*","(",")",",","|","?","<",">","`","~","=",":",";","-","_","+","/");
	}
	else
	{
		var spchar=new Array("!","@","#","$","%","^","&","*","(",")",",","|","?",".","<",">","`","~","=",":",";","-","_","+","/");
	}
do{
	chr=fValue.substring(i,i+1)
		for(var j=0;j<spchar.length;j++){
			if(chr==spchar[j]){
			alert("Invalid characters entered.\nPlease enter proper values.");
			fName.focus();
			return false;
			}
		}

}while(++i<flen);
return true;
}

function trunk(num,index)
{
	var str2 = num.toString();
	var index2 = str2.indexOf(".");
	if(index2!=-1)
	{
		index2 = index2+index;
		str2 = str2.substring(0,index2);
	}
	
	return str2;
}