function testValidEmail(strEmail){
	var em;

  validRegExp = /^[^@]+@[^@]+.[a-z]{2,}$/i;
  em = document.getElementById(strEmail).value;


   // search email text for regular exp matches
   if (em.search(validRegExp) == -1) 
   {
      return false;
    } 
    return true; 
}


function checkFieldValid(ckFieldName) {

	if((document.getElementById(ckFieldName).value=="")) {      
	      fieldValid=false;
	   }
	else
	{
	    fieldValid=true;
	}
	 return fieldValid;
}

function checkFieldValidSel(ckFieldName) {

	if((document.getElementById(ckFieldName).value=="no_answer")) {      
	      fieldValid=false;
	   }
	else
	{
	    fieldValid=true;
	}
	 return fieldValid;
}

function setErrorField(ckFieldName,ckValid) {
var oheight=0;


	if(ckValid==false){
		var c = document.getElementById(ckFieldName+'_error');
    if(c.style.display!="inline"){
    	oheight = 20;
    }      
    c.style.display="inline";
	}
	else {
		var c = document.getElementById(ckFieldName+'_error');    
		if(c.style.display=="inline"){
			oheight = 0-20;
		}
    c.style.display="none";
	}
	
	return oheight;
	
}