function calculate() { 
	var award;
	var price1 = strip(document.getElementById("price1").value);
	var price2 = strip(document.getElementById("price2").value);
    var percent1;
	var percent2;
     
     percent1 = getPercent(price1);
     percent2 = getPercent(price2);
 
   
     award = (price1 * 0.03 * 0.35 * percent1) + 
     	(price2 * 0.03 * 0.35 * percent2);
    
	if (award > 15000) award = 15000;

 
	document.getElementById("award").value = "$" + formatCurrency(award);
     return false;   
}

function getPercent(x) {
	var percent;
     
     if (x < 100000)
     	percent = 0;
     else if (x >= 100000 && x < 250000)
     	percent = 0.2;
     else if (x >= 250000 && x < 500000)   
     	percent = 0.25;
     else if (x >= 500000 && x < 700000) 
		percent = 0.35;
     else if (x >= 700000 && x < 1000000) 
     	percent = 0.4;
     else if (x >= 1000000)
     	percent = 0.5;

	return percent;      
}


function strip(num){ // this function removes spaces and illegal characters
	num = "" + num;
		if (num == "") return "";
	var result = "";
	for (i=0; i<num.length; i++){
	character = num.charAt(i);
	if ("0123456789".indexOf(character) != -1)
		result += character;
	}
	return result;
}

function formatCurrency(num) {
	num = num.toString().replace(/\$|\,/g,'');
	if(isNaN(num)) num = "0";
	sign = (num == (num = Math.abs(num)));
	num = Math.floor(num*100+0.50000000001);
	cents = num%100;
	num = Math.floor(num/100).toString();
	if(cents<10)
	cents = "0" + cents;
	for (var i = 0; i < Math.floor((num.length-(1+i))/3); i++)
	num = num.substring(0,num.length-(4*i+3))+','+
	num.substring(num.length-(4*i+3));
	return (((sign)?'':'-') + num);
}

function openCheckNote() {
	window.open('/popup/find-realtor-howitworks/check-note/','','scrollbars,resizable,width=200,height=100')
}