use an html field value in IFTTT jira ticket creation

[Butch_Richards]

using HTML  I crated a date Picker I need to use that date when I use IFTTT to create a jira ticket. HTML field is startSprintDate this is out side of the confi form. I will put it in the form if there are any ideas how the Javascript does the heavy lifting for me. the goal is to set a target start and end date 

{"fields" : {								
	"project":		      {	"key":	"[entry.ProjectID]"	},	
	"issuetype":		  {	"name":	"Task"	},
    
  "fixVersions": [{
			"name": "[entry.fixVersion.releaseName]"
		}],     
"assignee": {
			"name": "[entry.BSA.Label]"
		},
    
    "customfield_24100": "{{sprintStartDate}}",
    "customfield_24101": "[entry.MALDate.jiraDate]",
    "customfield_10006":	"[entry.ParentLink]",
	"customfield_19600":	"8633",
	"summary":			    "[entry.Prefix] - Malcode Setup",
	    
    "description":	"Submit request for Malcode setup"
  
   }  
}