function emptyvalidation(entered, alertbox)
{
	with (entered)
	{
		while (value.charAt(0) == ' ')
			value = value.substring(1);
		while (value.charAt(value.length - 1) == ' ')
			value = value.substring(0, value.length - 1);
		if (value==null || value=="")
		{
			if (alertbox!="") alert(alertbox);
			return false;
		}
		else return true;
	}
}
function emailvalidation(entered,alertbox)
{
	with (entered)
	{
		lastpos=value.length-1;//Total Letters
		apos=value.indexOf("@"); //Total letters before @
		dotpos=value.lastIndexOf(".");//Total letters before .
		beforeStr=value.substring(0,apos);
		afterStr=value.substring(apos);
		dotafatpos=afterStr.indexOf(".");
		udslpos=beforeStr.lastIndexOf("_");
		dotfpos=beforeStr.indexOf(".");
		dotlpos=beforeStr.lastIndexOf(".");
		if (apos<1 || dotpos-apos<2 || lastpos-dotpos>3 || lastpos-dotpos<2 || dotfpos!=dotlpos || apos-1==udslpos || dotafatpos==1) 
		{if (alertbox) {alert(alertbox);} return false; }
		else {return true;}
	}
}


function getFileType(formobj,field) {

 var formElement = field;
 var filePath = field.value;
 var pathLength = filePath.length;
 var lastDot = filePath.lastIndexOf(".");
 var fileType = filePath.substring(lastDot,pathLength);
 return fileType;
 }
 
function inArray(array,val){
	
 for(var i = 0; i < array.length; i++)
 { 
  if(array[i] === val) return true; 
  } 
 return false; 

 }