function checkform ( form ) {
  var dml = form ;
	var emailFilter=/^.+@.+\..{2,3}$/ ;
	var illegalChars= /[\(\)\<\>\,\;\:\\\/\"\[\]]/ ;

	  if(dml.quote_name.value == "") {
		    alert("Please input name !");
		    dml.quote_name.focus();
		    return(false);
	  }
      
    if (!(emailFilter.test(dml.quote_email.value))) { 
       alert("Please input a valid email address.\n");
	     dml.quote_email.focus();
		   return(false);
    }
	  if(dml.quote_phone.value == "") {
		    alert("Please input the phone number !!");
		    dml.quote_phone.focus();
		    return(false);
	  }	    
	 if(dml.quote_type.value == "Choose One") {
		    alert("Please select type !!");
		    dml.quote_type.focus();
		    return(false);
	  }	
	  if( dml.quote_source.value == dml.quote_target.value){
		    alert("Source language and target language can't be same!");
		    dml.quote_source.focus();
		    return(false);	  
	  }
    return(true);
	}