function ltrim(stringToTrim) {
	return stringToTrim.replace(/^\s+/,"");
}
function rtrim(stringToTrim) {
	return stringToTrim.replace(/\s+$/,"");
}

function trim(stringToTrim) {
	return stringToTrim.replace(/^\s+|\s+$/g,"");
}

function removeError(temp_str)
{
  try {
	   if (navigator.appName=="Netscape") 
	   {
		   document.getElementById(temp_str).parentNode.removeChild(document.getElementById(temp_str));
	   }
	   else document.getElementById(temp_str).removeNode(true);
	  }
  catch(e){;}
  
}

function check_field(objname,pattern,err_msg,typeOf,numberOfrights) 
{  
	var obj=document.getElementsByName(objname);
	var tempstr="";
	var returnstatus=false;
	var i;
	var rightcount=0;
	if (!obj || obj.length==0) 
	{
		alert("Element "+objname+" does not exist");
		return false;
	}

    for (i=0; i < obj.length; i++) 
    {
	   removeError(obj[i].id+"_error");
	   if(obj[i].type == "text" || obj[i].type=="textarea" || obj[i].type=="hidden") 
	   {
	       tempstr = obj[i].value;
	       if (typeOf=="N") tempstr=tempstr.replace(/[^\d*]/gi,"");
		   else
		   { 
			 if (typeOf=="A")
			 {
	          tempstr = trim(obj[i].value.toUpperCase());
		      obj[i].value=tempstr;
	         }
	         else
	         {
		         tempstr = trim(obj[i].value);
		         obj[i].value=tempstr;
		     }
	         
		   }
	   }
	   else 
	   { 
	     if(obj[i].type == "checkbox" || obj[i].type == "radio") 
	     {
	       if(obj[i].checked==true) tempstr = obj[i].value;
	     }
	     else
	     {
		   for (var w=0; w<obj[i].options.length; w++)
	       {  
		       if (obj[i].options[w].selected==true)     tempstr = tempstr+obj[i].options[w].value+"|";
	       }  
	       tempstr=tempstr.substr(0,tempstr.length-1);   
	     } 
	   }
    }
 
    var tempstrrarray=tempstr.split('|');
    for (var z=0; z<tempstrrarray.length;z++)
	{
        if (pattern.test(tempstrrarray[z]))   rightcount=rightcount+1;
    }
    
   if (rightcount>=numberOfrights) returnstatus=true;
   i=i-1; 
   if(!returnstatus)
   {
     var ErrElement = document.createElement('div');
     ErrElement.setAttribute('class','red');
     ErrElement.setAttribute('id',obj[i].id+"_error");
     ErrElement.innerHTML="<font color=red>"+err_msg+"</font>";
     obj[i].parentNode.appendChild(ErrElement);
     return false;
   }
   else return true;
 
  }

function onlyNumbers(evt)
{
    var e = event || evt; // for trans-browser compatibility
    var charCode = e.which || e.keyCode;
    if (charCode > 31 && (charCode < 48 || charCode > 57))
        return false;
    return true;
}

function NumberOnly(obj)
{
     var o=obj.value;
     var p = o.replace(/[^\d*]/gi,"");
     obj.value=p;
     if (o != p)
     {
     obj.focus();
     }
}

function onlyCurrency(evt)
{
    var e = event || evt; // for trans-browser compatibility
    var charCode = e.which || e.keyCode;
    if (charCode > 31 && (charCode < 48 || charCode > 57) && charCode != 46)
        return false;
    return true;
}

function onlyCreditCard(evt)
{
    var e = event || evt; // for trans-browser compatibility
    var charCode = e.which || e.keyCode;
    if (charCode > 31 && (charCode < 48 || charCode > 57) && charCode != 45)
        return false;
    return true;
}

function onlyDecimals(obj)
{
    var val = obj.value;
    var e = window.event ;
    var charCode = e.which || e.keyCode;
    if (charCode > 31 && (charCode < 48 || charCode > 57) && charCode!= 46)  
        return false;
    else 
    { if (val.indexOf(".") > -1 && charCode==46 ) return false;
      else return true;
    }
}
//alert("validations loaded");