var errormsg=""; function checkEmail(email) { var at1 = email.indexOf("@"); var at2 = email.lastIndexOf("@"); var dot = email.lastIndexOf("."); var space = email.indexOf(" "); if((at1!=-1)&& (at1!=0)&& (at2==at1)&& (dot!=-1)&& (dot>at1+1)&& (dot0) ) result=false; if( ((mm=="04")||(mm=="06")||(mm=="09")||(mm=="11")) && (dd=="31") ) result=false; } else { result=false; } if(result==false) errormsg=errormsg+"- "+name+" khong dung dinh dang.\n" return result; } function checkInterval(dstart,mstart,ystart,names,dend,mend,yend,namee) { var re=true; re=checkDate(dstart,mstart,ystart,names)&&checkDate(dend,mend,yend,namee); if(re) { var yyyy=yend-ystart; if(yyyy>0) re=true; else if(yyyy==0) { var mm=mend-mstart; if(mm>0) re=true; else if(mm==0) { var dd=dend-dstart; if(dd>=0) re=true; else re=false; } else re=false; } else re=false; } if(re==false) errormsg=errormsg+"- Khoang thoi gian khong hop ly.\n"; return re; } function checkTextField(str,name) { if(str=="") { errormsg=errormsg+"- "+name+" chua nhap thong tin.\n"; return false; } else return true; } function checkPassword(p,namep,rp,namerp) { if(p!=="") { if(p==rp) return true; else { errormsg=errormsg+"- "+namep+" khong giong voi "+namerp+".\n"; return false; } } else { errormsg=errormsg+"- "+namep+" chua co thong tin.\n"; return false; } } function checkIsIntNum(val,name) { if((val!="")&&(!isNaN(val)) && val.indexOf(".")<0) return true; else { errormsg=errormsg+"- "+name+" khong phai la so nguyen.\n"; return false; } } function checkChoice(val,name) { if(val=="") errormsg=errormsg+"- "+name+" phai chon mot.\n"; } function checkIsNum(val,name) { if((val!="")&&(!isNaN(val))) return true; else { errormsg=errormsg+"- "+name+" khong phai la mot so.\n"; } } function checkAll() { if(errormsg!="") { alert("---------------------------------------\nXIN KIEM TRA LAI THONG TIN ! \n---------------------------------------\n"+errormsg); errormsg=""; return false; } else return true; errormsg=""; } function changeData(url) { open(url,"","width=560,height=500,top=20,left=100,scrollbars,resizable"); } function deleteData(url) { if (confirm('Do you want to delete ?')) open(url,"",""); } function image_open(image_loc,img) { HTML = "

"; popupImage = window.open('','_blank','toolbar=no,scrollbars=no'); popupImage.document.open(); popupImage.document.write(HTML); popupImage.document.close(); //obj_img = document.getElementById(img); //obj_img.src= obj_img.src; }