// JavaScript Document

function show_graduation_year(val)
{
	if(val=='Alumni')
	document.getElementById('alumni_graduation_year').style.display='';
	else
	document.getElementById('alumni_graduation_year').style.display='none';
}
function checkAddImage()
{
	
	var error	=	"";
	/*if(document.getElementById('album_id').value	==	"")
	{	
		error	+= 	"<br>Select album";
	}*/
	document.getElementById('caption').value	=	document.getElementById('caption').value.replace(/^\s\s*/, '').replace(/\s\s*$/, '');
	if(document.getElementById('caption').value	==	"")
	{	
		error	+= 	"<br>Caption is blank";
	}
	document.getElementById('description').value	=	document.getElementById('description').value.replace(/^\s\s*/, '').replace(/\s\s*$/, '');
	if(document.getElementById('description').value	==	"")
	{	
		error	+= 	"<br>Description is blank";
	}
	if(document.getElementById('image').value	==	"")
	{	
		error	+= 	"<br>Upload an image";
	}
	if(error	!=	"")
	{
		error	=	"<font color=\"#FF0000\">Following fields are required"+error+"</font>";
		document.getElementById('alert').innerHTML	=	error;
		return false;
	}
	else
		return true;
}


function checkChangeGallery()
{
	var error	=	"";
	document.getElementById('caption').value	=	document.getElementById('caption').value.replace(/^\s\s*/, '').replace(/\s\s*$/, '');
	if(document.getElementById('caption').value	==	"")
	{	
		error	+= 	"<br>Caption is blank";
	}
	document.getElementById('description').value	=	document.getElementById('description').value.replace(/^\s\s*/, '').replace(/\s\s*$/, '');
	if(document.getElementById('description').value	==	"")
	{	
		error	+= 	"<br>Description is blank";
	}
	if(error	!=	"")
	{
		error	=	"<font color=\"#FF0000\">Following fields are required"+error+"</font>";
		document.getElementById('alert').innerHTML	=	error;
		return false;
	}
	else
		return true;
}


function checkGallery()
{
	var error	=	"";
	document.getElementById('caption').value	=	document.getElementById('caption').value.replace(/^\s\s*/, '').replace(/\s\s*$/, '');
	if(document.getElementById('caption').value	==	"")
	{	
		error	+= 	"<br>Caption is blank";
	}
	document.getElementById('description').value	=	document.getElementById('description').value.replace(/^\s\s*/, '').replace(/\s\s*$/, '');
	if(document.getElementById('description').value	==	"")
	{	
		error	+= 	"<br>Description is blank";
	}
	if(document.getElementById('coverImage').value	==	"")
	{	
		error	+= 	"<br>Upload cover image";
	}
	if(error	!=	"")
	{
		error	=	"<font color=\"#FF0000\">Following fields are required"+error+"</font>";
		document.getElementById('alert').innerHTML	=	error;
		return false;
	}
	else
		return true;
}

function chkContactUs()
{
	var error	=	"";
	var objRegExp	=	/(^[a-z]([\.]?(\s)*[a-z]+)+)$/i;
	document.getElementById('name').value	=	document.getElementById('name').value.replace(/^\s\s*/, '').replace(/\s\s*$/, '');
	if(document.getElementById('name').value	==	"")
	{	
		error	+= 	"<br>Name is blank";
	}
	else if(!objRegExp.test(document.getElementById('name').value))
	{
		error	+=	"<br>Incorrect Name";
	}
	
	document.getElementById('email').value	=	document.getElementById('email').value.replace(/^\s\s*/, '').replace(/\s\s*$/, '');
	if(document.getElementById('email').value	==	"")
	{	
		error	+= 	"<br>Email Id is blank";
	}
	else if(checkEmail(document.getElementById('email').value)	==	false)
	{
		error	+=	"<br>Invalid Email Id";	
	}
	
	document.getElementById('msg').value	=	document.getElementById('msg').value.replace(/^\s\s*/, '').replace(/\s\s*$/, '');
	if(document.getElementById('msg').value	==	"")
	{	
		error	+= 	"<br>Message is blank";
	}
	
	if(error	!=	"")
	{
		error	=	"<font color=\"#FF0000\">Required fields : "+error+"</font>";
		document.getElementById('alert').innerHTML	=	error;
		return false;
	}
	else
		return true;
}

function checkEmail(str) 
{

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    return false
		 }

 		 return true					
}