function trim(str) {
  str = this != window? this : str;
  return str.replace(/^\s+/g, '').replace(/\s+$/g, '');
}

function isArray(obj) {
   if (typeof(obj[1]) == 'object')
      return true;
   else
      return false;
}

function chkNumber(field,name) {
   if (isNumeric(field.value)==false){
   		alert(name + " must be numeric.");
		 field.focus();
         return false;
   }
   return true;
}

function chkEmail(field,name) {
   if (validEmail(field.value)==false){
   		alert(name + " is invalid.");
		 field.focus();
         return false;
   }
   return true;
}

function chkPhone(field,name) {
   if (isNumeric(field.value)==false){
   		alert(name + " must contain only numbers.");
		 field.focus();
         return false;
   }
   return true;
}

function isNumeric(sText){
   var ValidChars = "0123456789";
   var IsNumber=true;
   var Char;
   
   sText=trim(sText);
   
   for (i = 0; i < sText.length; i++){ 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1){
   		 IsNumber=false;
		 break;
 	   }
  }
   return IsNumber;
}

function validEmail(sText) {
  var ValidChars = "0123456789_-abcdefghijklmnopqrstuvwxyz@.";
  var Char;
  var indexOfAtRate;
  
  //Check For the existence of @ and .
  if((sText.indexOf(".") == -1) || (sText.indexOf("@") == -1))
     return false;

//Check if there are more than 1 @
 if(sText.indexOf("@")!=sText.lastIndexOf("@"))
    return false;
	
//Check if the string starts from @ or .	
 if(((sText.indexOf(".") > 0) && (sText.indexOf("@") > 0))==false)
     return false;	
 
 //Check if the string ends with @ or .	
 if(sText.charAt(sText.length-1)=="." ) 
    return false;
 if(sText.charAt(sText.length-1)=="@" )
     return false;
 
 //Check if there is a character between @ and .
 indexOfAtRate = sText.indexOf("@");
  for (i = 0; i < sText.length; i++){ 
    Char = sText.charAt(i).toLowerCase(); 
    if(Char=="."){
	  if(i>indexOfAtRate){
    	 if(i-indexOfAtRate<2)
	    	  return false;
	 }		  
	  else{
    	 if(indexOfAtRate-i<2)
	    	  return false;   
	  }	  
  }
 }
  
  //Check for valid characters in the string	
   for (i = 0; i < sText.length; i++){ 
      Char = sText.charAt(i).toLowerCase(); 
      if (ValidChars.indexOf(Char) == -1)
         return false;
    }
 
   return true;	 
}

function chkLoginId(field,name){
   var ValidChars = "0123456789_abcdefghijklmnopqrstuvwxyz";
   var IsValid=true;
   var Char;
   var sText=trim(field.value);
   
   for (i = 0; i < sText.length ; i++){ 
      Char = sText.charAt(i).toLowerCase(); 
      if (ValidChars.indexOf(Char) == -1){
	     alert(name+" is invalid.")
		 field.focus();
         IsValid = false;
		 break;
      }
    }
   return IsValid;
}

function chkName(field,name){
   var ValidChars = "0123456789abcdefghijklmnopqrstuvwxyz";
   var IsValid=true;
   var Char;
   var sText=trim(field.value);
   
   for (i = 0; i < sText.length ; i++){ 
      Char = sText.charAt(i).toLowerCase(); 
      if (ValidChars.indexOf(Char) == -1){
	     alert(name+" is invalid.")
		 field.focus();
         IsValid = false;
		 break;
      }
    }
   return IsValid;
}

function chkEmpty(field,name){
  if(field.type=="select-one" && field.value==0){
      alert("Select " + name +".");
	  field.focus();
	  return false;
  }
  else if(trim(field.value)==""){
     alert(name + " cannot be blank.");
	 field.focus();
	 return false;
   }
   
   return true;
}

function strCompare(field1,field2,field2Name){
  if(field1.value==field2.value)
     return true;
  else{
     alert(field2Name + " do not match.");
     field2.focus();
	 return false;
  }
}

function countSelectedFromArray(field){
  var cnt=0;
   if(isArray(field)){
	  for (var i = 0; i<field.length; i++) {
    	    if(field[i].checked)
        	   cnt++;
      }
   }
   else{
      if(field.checked)
	    cnt++ ;
   }
   return(cnt);
}

function checkUncheck(field,subField){
var flag;
 flag=field.checked;
 if(flag)
     field.title="Uncheck All";
 else
     field.title="Check All";
    	 
 if(isArray(subField)==false){
    if(subField.disabled==false)
	subField.checked = flag;
  }
 else{
   for (var i = 0; i<subField.length; i++)
       if(subField[i].disabled==false)
        subField[i].checked = flag;
  }
}

 function setListAll(f1,f2,f3,f4,f5,f6) {
	 var j=0;
     for (var i = 0; i < f1.length; i++) {
          f2.options[f2.length]=new Option(f1.options[i].text,f1.options[i].value, false);
     }
    f1.length = 0;
	f3.disabled =true;
	f4.disabled =true;
	f5.disabled =false;
	f6.disabled =false;
}

 function setList(f1,f2,f3,f4,f5,f6,x) {
	 var j=0;
	 if(f1.value=="" && x==1) {
         alert("Select an entry to add");
      } 
	  else if(f1.value=="" && x==2){
         alert("Select an entry to remove");
	  }
	  else {  
         var replaceTextArray = new Array(f1.length-1);
         var replaceValueArray = new Array(f1.length-1);
         for (var i = 0; i < f1.length; i++) {
            if(f1[i].selected){
		       f2.options[f2.length]=new Option(f1.options[i].text,f1.options[i].value, false);
			}
			else{
			  	replaceTextArray[j] = f1.options[i].text;
			  	replaceValueArray[j] = f1.options[i].value; 
			  	j++;
			}
         }
         f1.length = 0;
		 if(j!=0){
         	for (i = 0; i < j; i++)
				 f1.options[i]=new Option(replaceTextArray[i],replaceValueArray[i], false);
		}	 
      } 
      if(f1.length==0){
   	   	if(x==1)
    	  	f3.disabled =true;
	  	else
	  		f4.disabled =true;
	  }
	  if(f2.length!=0){
	   	if(x==1)
    	    f4.disabled=false;
	  	else
	   		f3.disabled=false;
	  }
	  f5.disabled=f3.disabled;
	  f6.disabled=f4.disabled;
}

function chkRadioButtons(field,name){
  var flag=false;
  for(var i=0;i<field.length;i++){
     if(field[i].checked){
	   flag=true;
	   break;
	 }  
  }
  if(flag==false)
    alert("Select " + name);
  return flag; 
}

function chkTextArea(field,len){
    var remLength=len-field.value.length;
	var code=window.event.keyCode;
	var pressedKey = String.fromCharCode(event.keyCode).toLowerCase();
	//Numeric code for the keys: Delete:46, Backspace:8, Tab:9,Enter:13, CTRL:17
	 if(code==46 || code==8 || (event.ctrlKey && pressedKey=="c") )
	    event.returnValue=true;	
     else if(event.ctrlKey && pressedKey=="v"){
	       var strTemp;
		   strTemp=window.clipboardData.getData("TEXT");   
		   if(strTemp.length>remLength)
		      strTemp=strTemp.substr(0,remLength);
		   window.clipboardData.setData("TEXT",strTemp);   
      }
	 else if(remLength<=0) 
		event.returnValue=false;	  
	 else
	    event.returnValue=true;	  		
  }

function chkKey() {
 var pressedKey = String.fromCharCode(event.keyCode).toLowerCase();
 if (event.ctrlKey && (pressedKey=="v" || pressedKey=="c" )) 
     event.returnValue = false;
}  

function clearForm(frm){
  var lstitem;
  for (var i = 0; i<frm.elements.length; i++) {
	   if (frm.elements[i].type=="text" || frm.elements[i].type=="password" || frm.elements[i].type=="file" || frm.elements[i].type=="textarea" || frm.elements[i].type=="hidden" ) 
            frm.elements[i].value ="";
	   else if (frm.elements[i].type=="select-one")
		   lstitem=frm.elements[i].options(0).selected = true;
	  else if (frm.elements[i].type=="checkbox" && frm.elements[i].disabled==false) 
	      frm.elements[i].checked=false;		
   }
  frm.elements[0].focus();
}

function closeForm(str){
  document.location=str;
}
function chkDropdown(field,name){

  if (field.selectedIndex==0 || field.selectedIndex==-1)
  {
  alert("Select "+name);
   return false; 
  }
  
}