document.write("<script>  \n");

function principal_calc(){
	var principal = document.principal.txtLoanAmount.value;
	var interest  = document.principal.txtInterestRate.value;
	var noy 	  = document.principal.txtlblLengthOfLoan.value;
	
	if (principal == '') { principal = '0'; }
	if (interest == '')  { interest = '0'; }
	if (noy == '') 		 { noy = '0'; }
	
	if (principal == "0"){ 
		var display = '<span style=\"font-weight: bold; color: #ffffff;\">Please fill "Loan Amount" field.</span>'; 
		document.getElementById("status").innerHTML = display; 
		}
		
	if (interest == "0"){ 
		var display = '<span style=\"font-weight: bold; color: #ffffff;\">Please fill "Interest Rate" field.</span>'; 
		document.getElementById("status").innerHTML = display; 
		}
	
	if (noy == "0"){ 
		var display = '<span style=\"font-weight: bold; color: #ffffff;\">Please fill "Length of Loan" field.</span>'; 
		document.getElementById("status").innerHTML = display; 
		}
		
	if (principal != "0" && interest != "0" && noy != "0" ){ 
		var str = principal 
		var a = (str.replace(/,/, "")) 
		var t_years = eval(noy*12) 
		var t_interest = eval(interest/1200); 
		var t = eval(1.0 /(Math.pow((1+t_interest),t_years))); 
			
			if(t < 1){ 
				var payment = eval((a*t_interest)/(1-t)); 
			} else { 
				var payment = eval(amt/$t_years); 
			} 
			
		var total = payment.toFixed(2); 
		var display ='<a href=\"https://www.mcmloans.com/application/Step1.aspx\" target=\"_blank\"><span  style=\"font-weight: bold; font-size: 130%; color: #dddddd;\">Your Monthly Payment: </span><span style=\"font-weight: bold; font-size: 130%; color: #ffffff;\">$'+total+'</span><br/></span><span style=\"font-weight: bold; font-size: 130%; color: #ffffff;\">Click here to apply now.</span></a>'; 
		
		document.getElementById("status").innerHTML = display; 
	}
}
document.write("</script>  \n");