function isInteger(s)
{   var i;
    for (i = 0; i < s.length; i++)
    {   
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    return true;
}

function checkValueType(formName, inputName, hasErrors){
	if(!isInteger(document.forms[formName][inputName].value)){
		document.forms[formName][inputName].style.backgroundColor = "#bfcee1";
		return true;
	}else{
		document.forms[formName][inputName][i].style.backgroundColor = "#ffffff";
		if(hasErrors){
			return true;
		}else{
			return false;
		}
	}
}

function checkValueLength(formName, inputName, hasErrors, volume){
	thisHasErrors = false;
	if(volume != "" && volume > 0){
		for(i=0; i<volume; i++){
			if(document.forms[formName][inputName][i].value.length <=0){
				document.forms[formName][inputName][i].style.backgroundColor = "#bfcee1";
				thisHasErrors = true;
			}
			else{
				document.forms[formName][inputName][i].style.backgroundColor = "#ffffff";
			}
		}
	}else{
		if(document.forms[formName][inputName].value.length <=0){
			document.forms[formName][inputName].style.backgroundColor = "#bfcee1";
			thisHasErrors = true;
		}else{
			document.forms[formName][inputName].style.backgroundColor = "#ffffff";
		}
	}
	if(hasErrors){thisHasErrors = true;}
	if(thisHasErrors){
		return true;
	}else{
		return false;
	}
}