var ie4 = false; if(document.all) { ie4 = true; }
function getObject(id) { if (ie4) { return document.all[id]; } else { return document.getElementById(id); } }
	
	
function isValidEmail(email){
	var filter = /^([a-zA-Z0-9_\.\-_])+\@(([a-zA-Z0-9\-\._])+\.)+([a-zA-Z0-9_]{2,4})+$/;
	if (!filter.test(email))
		return false;
	else
		return true;
}

function isValidPasswordLenght(password){
	if (password.length<5)
		return false;
	else 
		return true;
}

function isEmptyField(field){
	if (field.replace(/^\s*|\s*$/g,"")=="")
		return true;
	else
		return false;
}

function get_leasing_period(currTimestamp){
	var leasing_start_date,leasing_start_date2;
	var leasing_period,leasing_period2;
	

	
	

	leasing_start_date = document.getElementById('datepicker').value;
	leasing_period = document.getElementById('lease_original_lease_period').value;
	
	//leasing_period = leasing_period2.value;
	
	if(leasing_start_date!='' && leasing_period!=''){
		var pos1=leasing_start_date.indexOf('/')
		var pos2=leasing_start_date.indexOf('/',pos1+1)
		var strMonth=leasing_start_date.substring(0,pos1)-1
		var strDay=leasing_start_date.substring(pos1+1,pos2)
		var strYear=leasing_start_date.substring(pos2+1)
		
		var lease_date = new Date();
		lease_date.setMonth(strMonth);
		lease_date.setDate(strDay);
		lease_date.setFullYear(strYear);
		lease_time = lease_date.getTime();
		
		diff = currTimestamp - Math.floor(lease_time/1000);
		diffMonths = Math.floor(diff/(30*24*60*60));
		
		remainMonths = leasing_period - diffMonths;
		if(remainMonths>0){
			document.getElementById('lease_remaining_lease_period').value = remainMonths;
		}
		//alert(remainMonths);
		//convert differance in months/
	}
	
}