function checkfield(formch)
{    
   	var email=formch.email.value;  
   	if (email =='')    
   	{  
		alert('Enter Email Address');
		newsletter.email.focus () ;
   		return false;  
   	}    
   	  

	var fieldValue = formch.email.value; 
	if(fieldValue != ""){  //if field is not empty
	var atSymbol = 0
		for(var a = 0; a < fieldValue.length; a++){ //loop through field value string
			if(fieldValue.charAt(a) == "@"){ //look for @ symbol, if found increment atSymbol variable value and stop looking
			atSymbol++
			break
			}
		}
		if(atSymbol == 1 && fieldValue.charAt(0) != "@"){  // if @ symbol was found, and it is not the 1st character in string
		var period = fieldValue.indexOf(".",fieldValue.indexOf("@")+2) //look for period starting at 2 characters after the @ symbol
		
		//if period is not found or field contains less than 5 characters or period is in last position
			if(period == -1 || fieldValue.length < period + 2 || fieldValue.charAt(fieldValue.length-1)=="."){
			alert("Please Enter A Valid Email Address") // then cancel
			newsletter.email.focus () ;
			return false
			}
		}
		else{  // no @ symbol exists or it is in position 0 (the first character of the field)
		alert("Please Enter A Valid Email Address")
		newsletter.email.focus () ;
		return false // then cancel
		}
	}
	else{  // if field is empty
	alert("Please Enter A Valid Email Address")
	newsletter.email.focus () ;
	return false  // then cancel
	}
}


function FP_swapImg() {//v1.0
 var doc=document,args=arguments,elm,n; doc.$imgSwaps=new Array(); for(n=2; n<args.length;
 n+=2) { elm=FP_getObjectByID(args[n]); if(elm) { doc.$imgSwaps[doc.$imgSwaps.length]=elm;
 elm.$src=elm.src; elm.src=args[n+1]; } }
}

function FP_preloadImgs() {//v1.0
 var d=document,a=arguments; if(!d.FP_imgs) d.FP_imgs=new Array();
 for(var i=0; i<a.length; i++) { d.FP_imgs[i]=new Image; d.FP_imgs[i].src=a[i]; }
}

function FP_getObjectByID(id,o) {//v1.0
 var c,el,els,f,m,n; if(!o)o=document; if(o.getElementById) el=o.getElementById(id);
 else if(o.layers) c=o.layers; else if(o.all) el=o.all[id]; if(el) return el;
 if(o.id==id || o.name==id) return o; if(o.childNodes) c=o.childNodes; if(c)
 for(n=0; n<c.length; n++) { el=FP_getObjectByID(id,c[n]); if(el) return el; }
 f=o.forms; if(f) for(n=0; n<f.length; n++) { els=f[n].elements;
 for(m=0; m<els.length; m++){ el=FP_getObjectByID(id,els[n]); if(el) return el; } }
 return null;
}

function FP_swapImgRestore() {//v1.0
 var doc=document,i; if(doc.$imgSwaps) { for(i=0;i<doc.$imgSwaps.length;i++) {
  var elm=doc.$imgSwaps[i]; if(elm) { elm.src=elm.$src; elm.$src=null; } } 
  doc.$imgSwaps=null; }
}
// -->