// JavaScript Document
function echeck(str) {
		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		   alert("Invalid E-mail ID")
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   alert("Invalid E-mail ID")
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    alert("Invalid E-mail ID")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    alert("Invalid E-mail ID")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    alert("Invalid E-mail ID")
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    alert("Invalid E-mail ID")
		    return false
		 }

		 if (str.indexOf(" ")!=-1){
		    alert("Invalid E-mail ID")
		    return false
		 }
 		 return true
	}




function chkReg(){
 	 var me = document.frReg;
	   if(me.email.value==""){
		   alert('Required email address');
		   me.email.focus();
		   return false;
		   }
	   if(me.pwd.value==""){
		   alert('Required password');
		   me.pwd.focus();
		   return false;
		   }
	   if(me.pwd2.value==""){
		   alert('Please re-type your password');
		   me.pwd2.focus();
		   return false;
		   }
	   if(me.pwd.value!=me.pwd2.value){
		   alert('Password do not match.');
		   me.pwd.focus();
		   return false;
		   }
	   if(me.name.value==""){
		   alert('Required name');
		   me.name.focus();
		   return false;
		   }
  	   if(me.phone.value==""){
		   alert('Required numbber');
		   me.phone.focus();
		   return false;
		   }
  if (echeck(me.email.value)==false)
    {
	 me.email.value=""
	 me.email.focus();
	 return false
    }
		   
	}
	
	function ChkfrUsr(){
		var me =document.frUsr;
		 if(me.fileDesc.value=="" || me.usrFile.value==""){
			  alert('File Descriptions and upload file are requiried');
			  return false;
			 }
		 return true
		}


function proEdit(val){
	 if(val=='E'){
		 document.getElementById('myProE').style.display="block";
		 document.getElementById('myPro').style.display="none";
 		 }else{
		 document.getElementById('myPro').style.display="block";
		 document.getElementById('myProE').style.display="none";
			 }
	
	}		
	
function  chkLogin(){
 	var me =document.login;	
	 if(me.txtpassword.value=="" || me.txtusername.value==""){
		 alert('Enter your email and password...');
		 return false;
		 }
	   return true;
	}	


function chkRegA(){
 	 var me = document.frReg;
	   if(me.email.value==""){
		   alert('Required email address');
		   me.email.focus();
		   return false;
		   }
	   if(me.pwd.value==""){
		   alert('Required password');
		   me.pwd.focus();
		   return false;
		   }
	   if(me.pwd2.value==""){
		   alert('Please re-type your password');
		   me.pwd2.focus();
		   return false;
		   }
	   if(me.pwd.value!=me.pwd2.value){
		   alert('Password do not match.');
		   me.pwd.focus();
		   return false;
		   }
		   if(me.name.value==""){
		   alert('Required name');
		   me.name.focus();
		   return false;
		   }
  	   if(me.phone.value==""){
		   alert('Required numbber');
		   me.phone.focus();
		   return false;
		   }
      if (echeck(me.email.value)==false)
      {
	 me.email.value=""
	 me.email.focus();
	 return false
    }
	
	var val =me.email.value+"/"+me.pwd.value+"/"+me.name.value +"/"+ me.phone.value+"/"+ me.phone.value +"/"+ me.fax.value +"/"+me.user_level.value;
 	//alert(val);	
	newUser(val);
}

function palitLitrato(val){
 if(val=='imgprev1'){
   document.getElementById('imgprev1').style.display='block';
   document.getElementById('imgprev2').style.display='none';
   document.getElementById('imgprev3').style.display='none';
   document.getElementById('imgprev4').style.display='none';
   document.getElementById('imgprev5').style.display='none';
 }
 if(val=='imgprev2'){
   document.getElementById('imgprev2').style.display='block';
   document.getElementById('imgprev1').style.display='none';
   document.getElementById('imgprev3').style.display='none';
   document.getElementById('imgprev4').style.display='none';
   document.getElementById('imgprev5').style.display='none';
 }
 if(val=='imgprev3'){
   document.getElementById('imgprev2').style.display='none';
   document.getElementById('imgprev1').style.display='none';
   document.getElementById('imgprev3').style.display='block';
   document.getElementById('imgprev4').style.display='none';
   document.getElementById('imgprev5').style.display='none';
 }
 if(val=='imgprev4'){
   document.getElementById('imgprev2').style.display='none';
   document.getElementById('imgprev1').style.display='none';
   document.getElementById('imgprev3').style.display='none';
   document.getElementById('imgprev4').style.display='block';
   document.getElementById('imgprev5').style.display='none';

}

 if(val=='imgprev5'){
   document.getElementById('imgprev2').style.display='none';
   document.getElementById('imgprev1').style.display='none';
   document.getElementById('imgprev3').style.display='none';
   document.getElementById('imgprev5').style.display='block';
   document.getElementById('imgprev4').style.display='none';

}


}