function inputcheck(inputObj){
   setlength(inputObj)
   if((document.forms["search"].elements[0].selectedIndex==0) && isNaN(inputObj.value.charAt(inputObj.value.length-1))){
     alert("Accept Numbers Only");
        
     inputObj.value="";
    
   }
  

 
 
 }
 
 function setlength(inputObj){
 
     if(document.layers){
      if(inputObj.form.elements[0].value=1){   
       if(inputObj.value.length > 4){
        alert("no more than 4 digits");
        inputObj.value="";
        
        
       }
      } 
     }
     else{
     if(document.forms["search"].elements[0].value==1)
      inputObj.maxLength=4;
     else
      inputObj.maxLength=10000;
     
     
     }
      
 
 }

function checksend(){
  if(document.forms["search"].elements[0].selectedIndex==0 && isNaN(document.forms["search"].elements[2].value)){
  	alert("Numbers Only");
  	return false
  }
  else if(document.forms["search"].elements[0].selectedIndex==0 && document.forms["search"].elements[2].value.length>4){
  	alert("no more then 4 digits")
  	return false;
  	}
  else
   return true;

	
}