//This function validates Email.				
function checkEmail(strReceived)
{
	if(strReceived.indexOf("@")==-1)
	{
		return false;
	}
	if(strReceived.indexOf(".")==-1)
	{
		return false;
	}
	if(strReceived.charAt(0)==".")
	{
		return false;
	}
	else if(strReceived.charAt(0)=="@")
	{
		return false;
	}
	if((strReceived.charAt(0)>=0)&&(strReceived.charAt(0)<=9))
	{
		return false;
	}
	else if(strReceived.charAt(strReceived.length-1)==".")
	{
		return false;
	}
	else if(strReceived.charAt(strReceived.length-1)=="_")
	{
		return false;
	}
	else if(strReceived.charAt(strReceived.length-1)=="@")
	{
		return false;
	}
	else if(strReceived.indexOf("..")!=-1)
	{
		return false;
	}
	else if(strReceived.indexOf("__")!=-1)
	{
		return false;
	}
	else if(strReceived.indexOf("_.")!=-1)
	{
		return false;
	}
	else if(strReceived.indexOf("._")!=-1)
	{
		return false;
	}
	else if(strReceived.indexOf("@@")!=-1)
	{
		return false;
	}
	else if(strReceived.indexOf("@.")!=-1)
	{
		return false;
	}
	else if(strReceived.indexOf(".@")!=-1)
	{
		return false;
	}
	else if(strReceived.indexOf("@_")!=-1)
	{
		return false;
	}
	/*else if((strReceived.indexOf("@"))>(strReceived.indexOf(".")))
	{
		return false;
	}
	*/
	var intAtTheRate=0;
	var intdotTheRate=0;
		
	for(var intCount=0;intCount<strReceived.length;intCount++)
	{
		if(strReceived.charAt(intCount)=="@")
		{
			//alert(intAtTheRate);
			intAtTheRate=intAtTheRate+1;
			//alert(intAtTheRate);
		}
	}
	
	for(var intCount=0;intCount<strReceived.length;intCount++)
	{
		if(strReceived.charAt(intCount)==".")
		{
			//alert(intAtTheRate);
			intdotTheRate=intdotTheRate+1;
			//alert(intAtTheRate);
		}
	}
	//alert(intAtTheRate);
	
	if(intAtTheRate > 1)
	{
		return false;		
	}
	if(intdotTheRate > 3)
	{
		return false;		
	}
		
	var strValid="._-@abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
	for(var intCount=0;intCount<strReceived.length;intCount++)
	{
		strFind=strReceived.charAt(intCount);
		if(strValid.indexOf(strFind)==-1)
		{
			return false;	
		}
	}
		
	return true;
}