function checkPrice(obj,SaleAmount) {
var value = obj.value;
var reg = /^\d{1,8}(\.\d{1,2})?$/;
if (reg.test(value)) {
obj.parentNode.nextSibling.childNodes[0].value=((value-SaleAmount)/SaleAmount*100).toFixed(2);
}else{
obj.focus();
alert("请输入正确的申请金额，正整数或两位小数");
}
}
function checkHightScale(obj,SaleAmount) {
var value = obj.value;
var reg = /^-?\d{1,8}(\.\d{1,2})?$/;
if (reg.test(value)) {
obj.parentNode.previousSibling.childNodes[0].value=(parseFloat(SaleAmount)+(value*SaleAmount)/100).toFixed(0);
}else{
obj.focus();
alert("请输入正确的高开比例，整数或两位小数");
}
}