function echeck(str) {		var at="@"		var dot="."		var lat=str.indexOf(at)		var lstr=str.length		var ldot=str.indexOf(dot)		if (str.indexOf(at)==-1){		   alert("Invalid Email Address")		   return false		}		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){		   alert("Invalid Email Address")		   return false		}		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){			alert("Invalid Email Address")			return false		}		 if (str.indexOf(at,(lat+1))!=-1){			alert("Invalid Email Address")			return false		 }		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){			alert("Invalid Email Address")			return false		 }		 if (str.indexOf(dot,(lat+2))==-1){			alert("Invalid Email Address")			return false		 }				 if (str.indexOf(" ")!=-1){			alert("Invalid Email Address")			return false		 }		 return true						}function checkCWform(){	validForm = 1	 	if(validForm==1){		if(document.contactform.firstname){			if(document.contactform.firstname.value==''){				alert('Please enter a value into the field firstname')				document.contactform.firstname.focus();				validForm = 0			}		}	}		 	if(validForm==1){		if(document.contactform.lastname){			if(document.contactform.lastname.value==''){				alert('Please enter a value into the field lastname')				document.contactform.lastname.focus();				validForm = 0			}		}	}	if(validForm==1){		if(document.contactform.phone){			if(document.contactform.phone.value==''){				alert('Please enter a value into the field phone')				document.contactform.lastname.focus();				validForm = 0			}		}	}	 	if(validForm==1){		if(document.contactform.email){			if(document.contactform.email.value==''){				alert('Please enter a value into the field email')				document.contactform.email.focus();				validForm = 0			}		}	}		if(validForm==1){		if (echeck(document.contactform.email.value)==false){			document.contactform.email.focus();			validForm = 0		}	}		 	if(validForm==1){		if(document.contactform.confirmtext){			if(document.contactform.confirmtext.value==''){				alert('Please enter a value into the field confirmText')				document.contactform.confirmtext.focus();				validForm = 0			}		}	}		if(validForm==1){	return true;}else{	return false;}}