function isEmail(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					
		}
		//  Field Level Validation 
		function Validate() {
			if (document.frmEnquiry.txtName.value == "") {			
				alert("Name should not be left blank !");
				document.frmEnquiry.txtName.focus();	
				return false;
			}
			if (document.frmEnquiry.txtOrganization.value == "") {			
				alert("Organization should not be left blank !");
				document.frmEnquiry.txtOrganization.focus();	
				return false;
			}
			if (document.frmEnquiry.txtAddress.value == "") {			
				alert("Address should not be left blank !");
				document.frmEnquiry.txtAddress.focus();	
				return false;
			}
			if (document.frmEnquiry.txtPhone.value == "") {			
				alert("Phone no. should not be left blank !");
				document.frmEnquiry.txtPhone.focus();	
				return false;
			}
			if(isNaN(document.frmEnquiry.txtPhone.value)) {
				alert("Phone No. should be Numeric !");
				document.frmEnquiry.txtPhone.focus();	
				return false;
			}		
			if (document.frmEnquiry.txtEmail.value == "") {			
				alert("Email Address should not be left blank !");
				document.frmEnquiry.txtEmail.focus();	
				return false;
			}	
			if(!isEmail(document.frmEnquiry.txtEmail.value)) {
				alert("Email Address should be valid !");
				document.frmEnquiry.txtEmail.focus();
				return false;
			}							

			if (document.frmEnquiry.txtRequirements.value == "") {			
				alert("Requirements should not be left blank !");
				document.frmEnquiry.txtRequirements.focus();	
				return false;
			}
		}