function validate_email(email_txt) 
{
	var emailReg = "^[\\w-_\.]*[\\w-_\.]\@([\\w].+)\.[\\w]$";
	var regex = new RegExp(emailReg);
	return regex.test(email_txt);
}

function validate_integer(int_str)
{
	regExpr = new RegExp(/^\d*$/);
	var regex = new RegExp(regExpr);
	return regex.test(int_str);
}

function validate_real_nos(real_nos_str)
{
	regExpr = new RegExp(/^\d*$/);
	var regex = new RegExp(regExpr);
	return regex.test(real_nos_str);
}

function RoundOff(n,numplaces)
{
	str='';
	n=parseFloat(n);
	if(!isNaN(n))
	{
		power=Math.pow(10,numplaces);
		n=Math.round(n*power)/power;
		return n;
	}
}

function str_trim(str)
{	
	if(str.length > 0)
		while(str.charAt(0)==' ')
			str = str.substr(1);
		
	if(str.length > 0)
		while(str.charAt((str.length - 1))==' ')
			str = str.substring(0, str.length-1);
	
	return str;
}

function str_explode(arr, delim)
{
	var ret_str = "";
	var arr_len = 0;

	arr_len = arr.length;
	delim_len = delim.length;
	
	if(arr_len > 0)
	{
		for(var i=0; i < arr_len; i++)
			ret_str += delim + arr[i];

		if(ret_str.substr(0, delim_len))
			ret_str = ret_str.substr(delim_len);
	}
	
	return ret_str;
}

function in_array(str, arr)
{
	var ret_flag = false;
	var arr_len = 0;

	arr_len = arr.length;
	
	if(arr_len > 0)
	{
		for(var i=0; i < arr_len; i++)	
			if(arr[i] == str)
			{
				ret_flag = true;
				break;
			}
	}

	return ret_flag;
}

function CheckNum(obj)
{
	regExpr = new RegExp(/^\d*$/);

	if(str_trim(obj.value)!="")
	{
		if(!regExpr.test(obj.value))
		{
			alert("Please Enter Valid Numbers");
			obj.value="0";		
		}
	}
	else
		obj.value="0";		
}

function CheckRealNum(obj)
{
	regExpr=new RegExp(/^-?\d*(\.\d{1,2})?$/);
	
	if(str_trim(obj.value)!="")
	{
		if(!regExpr.test(obj.value))
		{
			alert("Please Enter Valid Amount");
			obj.value="0";		
		}
	}
	else
		obj.value="0";		
}

function RestrictCharLength(obj, disp_ctrl)
{
	var maxlength=255;
	var txt = obj.value;
	var lbl = document.getElementById(disp_ctrl);
	var key = event.keyCode;

	if(txt.length == maxlength)
	{
		lbl.innerText="0";
	}
	else if(txt.length >= maxlength)
	{
		obj.value = txt.substr(0, maxlength);
		lbl.innerText="0";
	}
	else
	{
		lbl.innerText = maxlength - txt.length;
	}
}

// NAVIGATION BASED
function AddAnother()
{
	if(Validate())
	{
		document.forms[0].add_mode.value = "Y";
		document.forms[0].submit();
	}
	else
		document.forms[0].add_mode.value = "N";
}

function GoToPage(page)
{
	window.document.location.href=page;
}

function ConfirmDelete(txt, page)
{
	var msg = "You Are About To Delete this " + txt + "! Continue?";

	if(confirm(msg))
		window.document.location.href=page;
	else
		return false;
}

function SubmitToThisPage(frm_nm, ctrl_nm, page_name)
{
	var page_no = document.getElementById(ctrl_nm).value;	
	var frm = eval("document."+frm_nm);
	
	frm.action = page_name+"?page="+page_no;
	frm.submit();
}

function SubmitPage(frm_nm, page)
{
	var frm = eval("document."+frm_nm);	
	frm.action = page;
	frm.submit();
}

function DefaultFocus(ctrl_nm)
{
	if(document.getElementById(ctrl_nm))
	{
		obj = document.getElementById(ctrl_nm);
		obj.focus();
	}
}

function SetFocus(obj)
{
	obj.focus();
	obj.select();
}

function UploadMailerPics()
{
	info="upload_images.php";
	window.open(info,"","menubars=0,width=500,height=550,scrollbars=1,resizable=1");
}

function ChangeRank(mode, fld, fld_val)
{
	var str = "";

	if(fld != "" && fld_val != "")
		str = "&fld=" + fld + "&fld_val=" + fld_val;

	var file = "rank-update.php?mode="+mode+str;
	win = window.open(file,'ChangeRank','width=900,height=600,scrollbars=1,resizable=1');
	WindowPosition(900,600,win);
}

function ChangeImageRank(mode, fld, fld_val)
{
	var str = "";

	if(fld != "" && fld_val != "")
		str = "&fld=" + fld + "&fld_val=" + fld_val;
	var file = "image-rank-update.php?mode="+mode+str;
	win = window.open(file,'ChangeRank','width=900,height=600,scrollbars=1,resizable=1');
	WindowPosition(900,600,win);
}

function PricingChangeRank(mode, fld, fld_val) // mode, condition fld, condition value
{
	var str = "";

	if(fld != "" && fld_val != "")
		str = "&fld=" + fld + "&fld_val=" + fld_val;
	
	//alert(str);
	var file = "pricing_rank_update.php?mode="+mode+str;
	win = window.open(file,'ChangeRank','width=900,height=600,scrollbars=1,resizable=1');
	WindowXPosition(900,600,win);
}

function BestSellerChangeRank(mode, fld, fld_val) // mode, condition fld, condition value
{
	var str = "";

	if(fld != "" && fld_val != "")
		str = "&fld=" + fld + "&fld_val=" + fld_val;
	
	//alert(str);
	var file = "bestseller_rank_update.php?mode="+mode+str;
	win = window.open(file,'ChangeRank','width=900,height=600,scrollbars=1,resizable=1');
	WindowXPosition(900,600,win);
}

function OpenPopup(file)
{
	win = window.open(file,'Popup','width=600,height=450,scrollbars=1');
	WindowPosition(600,450,win);
}

function side_menu_on(obj)
{
	obj.className = "side_menu_on";
	obj.innerHTML = "&raquo; " + obj.innerHTML;
}

function side_menu_off(obj)
{
	obj.className = "side_menu_off";
	obj.innerHTML = obj.innerHTML.substr(2);
}

function WindowPosition(widthX,heightX,windowName)
{
	var width = (screen.width);
	var height = (screen.height - 25);
	var centerleft = 0;
	var centertop = 0;
	var centerleft = (width/2) - (widthX/2);
	var centertop = (height/2) - (heightX/2);
	var width=widthX;
	var height=heightX;
	windowName.moveTo(centerleft,centertop);
	windowName.resizeTo(width, height);
	windowName.focus();
}

function WindowPosition2(widthX,heightX,windowName) //same as above, only it takes %age vals as params for width n height
{
	var width = (screen.width);
	var height = (screen.height - 25);
		
	var wt = (width * widthX) / 100;
	var ht = (height * heightX) / 100;

	var centerleft = (width/2) - (wt/2);
	var centertop = (height/2) - (ht/2);

	windowName.resizeTo(wt, ht);
	windowName.moveTo(centerleft,centertop);
	windowName.focus();
}

function FillFromList(list_obj)
{
	var cmb = list_obj;

	str = "";
		
	for(i=0; i < cmb.length; i++)
		if(cmb.options[i])
			str += "~" + cmb.options[i].value;
	
	return str.substr(1);
}

function Validate_InstaForm()
{
	var frm = document.frm_query;
	
	if(frm.txthname.value=="")
	{
		alert("Please Enter Hotel Name");
		frm.txthname.focus();
		return false;
	}	

	if(frm.txtname.value=="")
	{
		alert("Please Enter Name");
		frm.txtname.focus();
		return false;
	}	
	if(frm.txtemail.value=="")
	{
		alert("Please Enter Email");
		frm.txtemail.focus();
		return false;
	}	
	else
	{
		if(!validate_email(frm.txtemail.value))
		{
			alert("Please Enter A Valid Email ID.");
			frm.txtemail.focus();
			return false;
		}
	}
	if(frm.txtquery.value=="")
	{
		alert("Please Write your Query");
		frm.txtquery.focus();
		return false;
	}	
	else
	return true;
}