function valid(str) {
        for(var i = 0; i < str.length; i++) {
            var charcode = str.charCodeAt(i);

            /* A-Z */
            if(charcode >= 0x41 && charcode <= 0x5A) {
                continue;
            }               
            /* a-z */
            if(charcode >= 0x61 && charcode <= 0x7A) {
                continue;
            }   
            /* 0-9 */
            if(charcode >= 0x30 && charcode <= 0x39) {
                continue;
            }               
            /* . - _ 32*/
            if(charcode == 0x2D || charcode == 0x2E || charcode == 0x5F  ) {
                continue;
            }
               
            return false;
        }//end for(var i = 0; i < str.length; i++)

        return true;

    }//end function valid
	
	function testemail(obj) {
       obj.value = obj.value.trim();
        var atpos = obj.value.indexOf("@");
            if(atpos == -1) {
                return false;
            }

            if(atpos == 0) {
                return false;
            }

            var dotpos = obj.value.indexOf('.', atpos+2);

            if( dotpos == -1) {
                return false;
            }
               
            if(dotpos == (obj.value.length - 1) ) {
               return false;
            }
               
            if(obj.value.indexOf(".") == 0){
                return false;
            }
               
            if( obj.value.indexOf("@")  == (obj.value.indexOf('.', obj.value.indexOf("@")+1)) - 1 ){
                return false;
            }
                              
            if( obj.value.indexOf(".")  == (obj.value.indexOf('.', obj.value.indexOf(".")+1)) - 1 ){
	        return false;
            }
               
                             
           var fpart = obj.value.substring(0,atpos);
           var host = obj.value.substring(atpos + 1, dotpos);
           var domain = obj.value.substr(dotpos +1);

           if(!( valid(fpart) && valid(host) && valid(domain))) {
               return false;
           }
     
           var afterat = obj.value.substr(atpos + 1);
     
           if(afterat.lastIndexOf('.') == (afterat.length - 1)) {
               return false;
           }
     
           for(var i = 1; i < afterat.length; i++) {
        
     	       if(afterat.charAt(i) == '.' && afterat.charAt(i-1) == '.') {
                   return false;
               }

           }//end for(var i = 1; i < afterat.length; i++)

           return true;
                  
    }//end function testemail	

	function validateData(){
		document.getElementById('msgDone').style.display="none";
		document.getElementById('error_msg').style.display="none";
		var checkName = validLength(document.comment_form.name.value);
		if (checkName != "0") {
	    	document.getElementById('error_msg').innerHTML='<font color="#FF0000">كلمة '+checkName+' أطول من الحد المسموح به في الاسم </font>';
	    	document.getElementById('error_msg').style.display="block";
	 		document.comment_form.name.focus();
			return false;
		}
		var checkComment = validLength(document.comment_form.comment.value);
		if (checkComment != "0") {
	    	document.getElementById('error_msg').innerHTML='<font color="#FF0000">كلمة '+checkComment+' أطول من الحد المسموح به في التعليق </font>';
	    	document.getElementById('error_msg').style.display="block";
	 		document.comment_form.comment.focus();
			return false;
		}
		if (document.comment_form.name.value.trim() == "") {
	    	document.getElementById('error_msg').innerHTML='<font color="#FF0000">الرجاء إدخال  الإسم </font>';
	    	document.getElementById('error_msg').style.display="block";
	 		document.comment_form.name.focus();
			return false;
		}else if (document.comment_form.email.value.trim() == "") {
	    	document.getElementById('error_msg').innerHTML='<font color="#FF0000">الرجاء إدخال  البريد الإلكتروني </font>';
	    	document.getElementById('error_msg').style.display="block";
	 		document.comment_form.email.focus();
			return false;
		}else if (!testemail(document.comment_form.email) ){
           document.getElementById('error_msg').innerHTML='<font color="#FF0000">الرجاء التأكدّ من  البريد الإلكتروني </font>';
           document.getElementById('error_msg').style.display="block";
            document.comment_form.email.focus();
            return false;
		}else if (document.comment_form.comment.value.trim() == "") {
	    	document.getElementById('error_msg').innerHTML='<font color="#FF0000">الرجاء كتابة تعليقك</font>';
	    	document.getElementById('error_msg').style.display="block";
	 		document.comment_form.comment.focus();
			return false;
		}else{
			return true
		}
	}//end function
	
	
	
	function addComment(){
	if(validateData())
	{
	
		document.getElementById('buttonDIV').style.display="none";
		document.getElementById('imageDIV').style.display="block";
		var comment = document.comment_form.comment.value.replace(/([&\//?"><+])/g,Capitalize);
		var name = document.comment_form.name.value.replace(/([&\//?"><+])/g,Capitalize);
		var chk = "";
		if(document.comment_form.trackComments.checked) var chk = "yes";
		
	//var type = document.getElementById('typeArit').value;
	AJAXGet(base_url+"addComment.php?trackComment="+chk+"&sender_id="+document.comment_form.oid.value+"&type=0&comment="+comment+"&email="+document.comment_form.email.value+"&name="+name+"&title="+(document.tellForm?document.tellForm.title.value.replace(/([?])/g,"(q)"):"")+"&link="+(document.tellForm?document.tellForm.link.value:""),viewComment,false,false);
		setTimeout("viewComment('done')",10000);
	}

}
function Capitalize(orig,re1){
var result;
	if(re1 == "&")
	{
		result = "(amp)"
	}else if(re1 == "/"){
		result = "(xx)"
	}else if(re1 == "?"){
		result = "(p)"
	}else if(re1 == "\""){
		result = "(quot)"
	}else if(re1 == "<"){
		result = "(lt)"
	}else if(re1 == ">"){
		result = "(gt)"
	}else if(re1 == "+"){
		result = "(pl)"
	}else if(re1 == "\\"){
		result = "(bk)"
	}
	return result;
}
function validLength(str) {
	 	var mytool_arrayline=str.split("\n");
	 	 for(var c = 0; c < mytool_arrayline.length; c++) {
		 	var mytool_array=mytool_arrayline[c].split(" ");
	        for(var i = 0; i < mytool_array.length; i++) {
	            if(mytool_array[i].length >30)
	            {   
	            	return mytool_array[i].substring(0, 20)+"...";
	            
	            }
	        }//end for(var i = 0; i < mytool_array.length; i++)
	
	       
	 	 }
 		return 0;	
    }//end function valid
function viewComment(sText){
	if(sText != 0){
		document.getElementById('imageDIV').style.display="none";
		document.getElementById('buttonDIV').style.display="block";
		document.getElementById('msgDone').style.display="block";
		document.getElementById('error_msg').style.display="none";
		location.reload();
		
		//document.getElementById('buttonDIV').style.display = "block";
		document.comment_form.comment.value = '';
		
	}
}
function isIE(){
  // only for Win IE 6+
  // But not in Windows 98, Me, NT 4.0, 2000
  var strBrwsr= navigator.userAgent.toLowerCase();
  if(strBrwsr.indexOf("msie") > -1 && strBrwsr.indexOf("mac") < 0){
    if(parseInt(strBrwsr.charAt(strBrwsr.indexOf("msie")+5)) < 6){
      return false;
    }
    if(strBrwsr.indexOf("win98") > -1 ||
       strBrwsr.indexOf("win 9x 4.90") > -1 ||
       strBrwsr.indexOf("winnt4.0") > -1 ||
       strBrwsr.indexOf("windows nt 5.0") > -1)
    {
      return false;
    }
    return true;
  }else{
    return false;
  }
}